Cleansing Wave
From Archon Arcana - The KeyForge Wiki
Cleansing Wave • Sanctum • Action • Common • Play: Heal 1 damage from each creature. Gain 1
for each creature healed this way. • Artist: Gong Studios • Card Number: CotA (215), MM (130)

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