Groupthink Tank
From Archon Arcana
Groupthink Tank • Logos • Creature • Uncommon • Action: Deal 4
to each creature that shares a house with at least 1 of its neighbors. • Artist: BalanceSheet • Card Number: WC (151), MM (089)

Action: Deal 4
to each creature that shares a house with at least 1 of its neighbors.

Fire control by committee.
Artist: BalanceSheet
Commentary
If an ability states an effect is applied to "each creature", the effect is resolved for both Friendly and Enemy creatures.
Source: Rulebook