Jitte

The Jitte is part of the Ninja item set and deals damage equal to half your cat's Strength, rounded up — not flat damage, but a stat-scaling hit that grows stronger as you do. Every successful swing inflicts Weakness 1 on the target (reducing their damage output) while simultaneously granting the attacker +1 Strength and +1 HP. In a prolonged fight, the attacker gets meaningfully stronger with every exchange while the target gets meaningfully weaker — a compounding feedback loop that rewards staying in melee.

One quirky interaction: if your ally Pyrophina is on the field and no enemies remain, you can swing the Jitte at her to pocket the +1 Strength and +1 HP without spending them on an enemy encounter — a niche but real way to pad stats between waves. The weapon is a nod to Umezawa's Jitte from Magic: The Gathering, which shares the same philosophy of simultaneously strengthening yourself while debuffing opponents.