Tree of Decay (GRV-065) [Game of Gods: Revolution]

[Enter] >>>Your opponent discards a card. [Force Resonance] "Death" (This card gains the following text in all zones and outside the game as long as you control [Force Command] "Death".) You may play this card without paying its cost if you don't control a card named "Tree of Decay". Remove X cards in your graveyard from the game: Your opponent loses X00 life. Play this ability only once per turn.