
Whenever a creature you control enters, you get {E} (an energy counter).
{4}, {T}: Return target creature you control to its owner's hand.
Decoction Module has 4 printings, first in Kaladesh (2016). EDHREC ranks it #4,293 among Commander cards. It appears most in Satya, Aetherflux Genius decks (11,149 on EDHREC). 2 public decks on TCG run it. It has 9 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.