Whenever another creature enters, you choose one of three modes, put a +1/+1 counter on the Greeters, create a tapped Treasure token, or gain 2 life
It's a staple in red prison decks like Mono Red Moon, but even midrange and tempo decks run it in the sideboard to punish slow or multi-color strategies
Though it may seem counterintuitive to deliberately get rid of your own permanents, pay-off cards like Deadly Dispute and Ashnods Altar can ensure the reward is worth the cost
It will serve a similar role of slowing down the opponent, chipping through some damage, all while building up devotion
Attack with your creature, pump it, deal something like 3 damage, and use this cards adventure side to deal 6 more