Taboo

Secretly write down the name of a Trait or Status Effect on a piece of paper and place it face-down within eyesight of all Casters. Until the start of your next turn, when an opposing Caster Contracts a Beastie with the same Trait or Attack Status Effect, you may say "Shush!". If you do, reveal what you wrote down and nullify that Trait or Attack Status Effect on all Beasties that Caster controls until the end of your next turn.