Metronome

Metronome is earned by completing the Caves with a Collarless cat. This unlocks the Metronome active ability, which costs 5 mana and casts a completely random spell from the game's ability pool. The result can range from weak utility spells to devastating high-tier abilities, making every use unpredictable. Unlike Smart Metronome (the Jester version), Metronome does not filter out low-cost abilities, so the results are truly random. Important: the Collarless cat must be in your party from the very start of the adventure for this unlock to count; picking one up mid-run will not work.