Should You Run a Collarless Cat in Mewgenics?

Every tier list puts Collarless at the bottom. No stat bonuses, no class-specific identity, and an ability pool that every other class already has access to. On paper, bringing a Collarless cat into your party means voluntarily giving up a collar slot that could go to a Cleric, Fighter, Hunter, or any of the 13 collared classes that actually do something.

So why do experienced players still run Collarless cats on purpose?

The short answer: Skill Share. The long answer involves coin-based spells, Path and Soul abilities, Stone item synergies, breeding pipelines, mono-collar unlocks, and one very specific scenario where a Collarless cat contributes more to your team than any collar in the game possibly could.

This guide breaks down when a Collarless cat is worth a party slot, when it isn't, and how to build one that actually pulls its weight.

The Case Against Collarless

Let's get the bad news out of the way first. Running a Collarless cat means:

No stat bonuses. Every collared class gets something. Fighters get +2 STR and +1 SPD. Tanks get +4 CON. Hunters get +3 DEX and +2 LCK. Collarless gets nothing. Your cat's combat performance depends entirely on base stats from breeding, and without collar bonuses, those base stats need to be exceptional to compete.

The smallest effective ability pool. This sounds counterintuitive since Collarless technically has 172 abilities (108 active, 64 passive), more than any single class's 75. But every collared class draws from their own 75 class abilities PLUS all 172 Collarless abilities. A Fighter can learn Bare Minimum or Copycat just like a Collarless cat can, but a Collarless cat can never learn Berserk or Merciless. The Collarless pool is the floor that every other class builds on top of.

No class set bonus. Collared classes get powerful set bonuses from their class armor: the Cleric survives at 1 HP instead of being downed, the Psychic reduces spell costs with excess mana, the Tinkerer spawns four scrap pickups each battle. Collarless has no equivalent.

Most Collarless abilities are generalist. GameSpot's skill guide describes the pool as "predominantly generalist skills, most of which are used to buff units" and concludes that "only a select few are worthwhile." The abilities cover offense, support, and utility, but none of them define a role the way Steelskin defines a Tank or Snipe defines a Hunter.

For casual play and first-time runs, the verdict is simple: use a collar. Any collar. Even a bad draft on a collared class will usually outperform a Collarless cat.

The Case For Collarless

Now the interesting part.

Skill Share is a Collarless passive ability unlocked by completing The Boneyard with a Collarless cat. On its own, it does nothing. But it shares the effect of the bearer's other passive ability with every other cat in your party. The wiki.gg page describes this as "effectively giving each party member a third passive ability slot."

This is not a small deal. Passive abilities in Mewgenics are some of the most powerful effects in the game. Merciless (Fighter) refreshes your actions when you deal 10+ damage. Frenzy (Fighter) gives +2 Strength per kill. Thrill of the Hunt (Hunter) provides permanent Dexterity scaling. Bullseye (Hunter) guarantees hits. Hard Head (Tank) blocks all attacks from the front.

Now imagine every cat on your team having one of these passives. A Collarless cat with Skill Share + Frenzy means your Fighter, your Hunter, and your Cleric all gain +2 Strength every time they kill an enemy. A Collarless cat with Skill Share + Bullseye means your entire team's physical attacks can't miss. The force multiplication is enormous.

The question becomes: is giving every cat on your team a bonus passive worth more than whatever a fourth collared cat would contribute? In many endgame compositions, the answer is yes. A fourth DPS cat adds damage for one cat. Skill Share + the right passive adds power to three cats.

Coin Spells Bypass Mana Entirely

Collarless has a unique suite of coin-based spells that cost zero mana:

Vet Visit heals 10 HP for 5 coins. Buy Catnip grants 10 mana for 5 coins. Subway Ride teleports to any tile for 5 coins. Hire Hitman summons a bounty hunter familiar for 7 coins, once per turn.

In late-game runs where you've accumulated hundreds of coins from battles, events, and item sales, these spells provide powerful effects without touching your mana pool. A Collarless cat with all four coin spells can heal, restore mana, teleport, and summon an ally every single turn, funded entirely by gold that would otherwise sit unused.

This is particularly valuable because mana is the primary bottleneck for most classes. A Collarless cat that converts gold into actions operates on a completely separate resource system from the rest of your team.

Path and Soul Abilities Open Cross-Class Access

The "Path of the [Class]" active abilities and "[Class]'s Soul" passive abilities are technically Collarless abilities, available to Collarless cats through their ability pool. When cast, Path abilities transform into a random active skill from that class. Soul passives grant stat changes matching a class's base modifiers and transform into a random passive from that class.

This gives Collarless cats a way to access class-specific abilities without a collar. A Collarless cat that learns Path of the Thief gets a chance to roll Assassinate or Venom Barrage. One that learns Mage's Soul gets a random Mage passive plus the Mage's stat modifiers. The GameSpot legendary guide explains that Path abilities trigger their transformation based on specific conditions (like landing a critical hit for Path of the Thief), adding a layer of strategy to which Path you chase.

The Collarless-specific Soul passive, Void Soul (unlocked by completing The Moon with a Collarless cat), is particularly notable. The wiki.gg page notes that it doesn't grant stat changes (unlike other class Souls) but causes upgraded spell options to appear much earlier than normal. If obtained as a starting passive through breeding, this can make for a very strong Collarless cat.

Stone Item Synergies

Collarless cats have a unique advantage with three specific items: Mind Stone, Steven Stone, and Skill Stone. Because Collarless cats naturally fill their spell slots with Collarless active abilities, they get the full benefit from Mind Stone and Steven Stone. Other classes don't get the mana reduction from Skill Stone on their Collarless abilities, but Collarless cats do.

If you find these Stone items during a run, a Collarless cat becomes significantly stronger than its base stats would suggest. The mana reduction from Skill Stone on every ability in your loadout is a substantial efficiency boost.

Breeding and Legacy Value

When you upgrade Skill Share (which happens at Level 7), it ensures that the bearer's other passive ability is inherited by all of their children. Skill Share itself cannot be passed down to kittens, but the paired passive can.

This creates a powerful breeding pipeline. Run a Collarless cat with Skill Share + a desirable passive. Level it to 7 during the run. Every kitten that cat produces will inherit the paired passive. Over multiple generations, you build a lineage of cats that start their lives with a powerful passive already equipped, regardless of what class collar they later receive.

Mono-Collar Runs and Unique Unlocks

Collarless is the only class with unlocks tied to "Mono-Collar" runs, where your entire party is Collarless. These include unique items and completion rewards not available through any other class.

The wiki.gg page notes that with breeding passing down strong class passives (or items like Chaos Controller), mono-Collarless runs are achievable even without collar bonuses. A team of well-bred Collarless cats with inherited passives from multiple classes can be surprisingly strong.

One notable completion unlock: Skill Split, the trinket earned by clearing all zones with a Collarless cat. It grants a temporary copy of your first passive ability at the start of each battle, effectively doubling one passive's value.

When to Run Collarless

Run Collarless when you have Skill Share unlocked AND a powerful passive to pair it with. This is the primary reason. If you can pair Skill Share with Frenzy, Merciless, Bullseye, Thrill of the Hunt, Hard Head, or another scaling passive, the team-wide benefit exceeds what a fourth collared cat would add.

Run Collarless when you need area completion marks. Many unlocks require completing specific areas with a Collarless cat in your party. Skill Share and the Boneyard unlock are gated behind this. Plan these runs deliberately rather than accidentally.

Run Collarless when you have exceptional base stats on a cat. A cat with naturally high stats across the board, strong mutations, and good inherited passives can perform well without collar bonuses. The Collarless pool's generalist abilities become more effective when the cat wielding them has strong raw numbers.

Run Collarless in late-game runs with lots of accumulated coins. The coin spell suite becomes increasingly powerful the more gold you have. In runs where you're swimming in coins, a Collarless cat with Vet Visit, Buy Catnip, Subway Ride, and Hire Hitman operates at full effectiveness every turn.

Run Collarless in early Act 1 when collars are scarce. The mewgenicswiki.org guide notes that "in Act 1 when collars are scarce, a Collarless cat with good base stats and Path abilities can outperform a weak cat with a collar." If you don't have enough collars for a full party of four, a strong Collarless cat is better than an empty slot.

When Not to Run Collarless

Don't run Collarless without Skill Share. Without Skill Share, you're just running a weaker version of whatever class that collar slot could have been. The coin spells and Stone synergies are nice but not enough to justify giving up a collar on their own.

Don't run Collarless on your first playthrough. You need to unlock Skill Share first (which requires completing the Boneyard with a Collarless cat), and you need to understand other classes well enough to know which passives are worth sharing. Learn the game with collared classes, then add Collarless to your toolkit.

Don't run Collarless as your team's primary anything. Collarless can't reliably fill the role of main healer, main tank, or main DPS because you can't guarantee which abilities it will draft. It works best as a support/utility slot where the Skill Share contribution matters more than the cat's individual combat output.

The passive you pair with Skill Share defines whether your Collarless cat is worth the party slot. Here are the strongest options, drawn from the class guides:

Frenzy (Fighter) — +2 Strength per kill, shared to your whole team. Every cat on your team snowballs harder with each enemy killed.

Merciless (Fighter) — Refresh actions when dealing 10+ damage. Shared to your whole team, this dramatically increases action economy across the board.

Bullseye (Hunter) — Physical attacks can't miss. Shared to your whole team, this eliminates accuracy problems for every physical attacker.

Thrill of the Hunt (Hunter) — Permanent Dexterity scaling. Shared to your whole team, every cat's ranged damage grows over the course of a run.

Hard Head (Tank) — Block all attacks from the front. Shared to your whole team, this turns every cat into a partial Tank when positioned correctly.

Backstabber (Thief) — Backstabs always crit. Shared to your whole team, any cat positioned behind an enemy gets guaranteed crits.

Flow State (Monk) — +1 STR and +2 DEX per damage instance dealt. Shared to your whole team, multi-hit abilities become stat-scaling machines on every cat.

The ideal approach is to breed a Collarless cat that inherits one of these powerful passives from a parent, then draft Skill Share during the run. Since the first passive at Level 1 is randomly assigned, breeding is the more reliable way to ensure you start with the passive you want.

Building Your Collarless Cat

Step 1: Breed for high base stats. Without collar bonuses, base stats are everything. Target balanced stats across STR, DEX, INT, CHA, CON, and SPD. A cat with 8+ in every stat can perform well in any role.

Step 2: Inherit a powerful passive through breeding. If you've previously upgraded Skill Share on a Collarless cat (Level 7), its other passive is guaranteed to be inherited by children. Use this to pass down Frenzy, Merciless, Bullseye, or another top-tier passive.

Step 3: Draft Skill Share during the run. Since Skill Share is the endgame reward for completing the Boneyard with a Collarless cat, you need to have it unlocked first. Once unlocked, it appears in the Collarless ability draft pool.

Step 4: Fill spell slots with coin spells and Copycat. Vet Visit, Buy Catnip, Subway Ride, and Hire Hitman give you a full action toolkit that costs zero mana. Copycat and Second Wind provide flexible spell options.

Step 5: Equip Stone items if available. Mind Stone, Steven Stone, and Skill Stone all synergize especially well with Collarless cats since your entire ability loadout benefits from their effects.

The Verdict

Should you run a Collarless cat? If you have Skill Share unlocked and a powerful passive to pair it with, absolutely. The team-wide passive sharing can make your other three cats significantly stronger, and the Collarless cat itself contributes through coin spells, Copycat, and utility.

If you don't have Skill Share, the answer is almost always no. Use a collar. Any collar. The stat bonuses and class-specific abilities are too valuable to give up for generalist skills.

The one exception is early-game runs where collars are limited and you have a well-bred cat with no collar to spare. In that case, a strong Collarless cat with good base stats is better than leaving a party slot empty.

Collarless is not the weakest class in Mewgenics. It's the most misunderstood one. It looks like nothing on the surface, but Skill Share turns it into the invisible backbone of the best endgame compositions in the game.