Crusty Sock

A stiff, ancient sock worn around the neck — the kind that stands up on its own. Whatever has been accumulating inside it has taken on a life of its own: Crusty Sock spawns something at the start of every battle, providing an immediate ally or hazard before the first turn. The exact spawn may vary, but the reliable batch of extra presence at battle start makes it a strong opener item for any cat that benefits from more bodies on the field.

SpawnOnBattleStart fires once per encounter at the beginning, placing a creature or object into the field before any turns are taken. Unlike SpawnThingOnDamage (Pinworm) or SpawnThingOnDeath (Botfly Larva) which require specific triggers, this is a guaranteed opener that fires unconditionally every fight. The spawned entity provides numbers advantage from turn one, which is especially valuable in encounters where early pressure determines the outcome.

Best on builds that benefit from extra bodies — summon-synergy builds, area attackers who benefit from more targets dying nearby, or any run where numbers advantage is the strategy. The rare rarity reflects its reliability; unlike conditional spawn items, this fires every single battle. Stacks implicitly with other spawn or summon mechanics. The neck slot is relatively competitive so evaluate whether the guaranteed spawn is worth more than a defensive or stat-boosting neck item for your current run.