Infinite copies of most creatures you control with hasteInfinite creature tokens with hasteInfinite death triggersInfinite creature ETBInfinite lifegainInfinite lifegain triggersInfinite creature LTBInfinite creature sacrifice triggers
How it works
Activate Lurking Roper using Kiki-Jiki's ability by tapping it, creating a token copy of itself with haste.
When the Lurking Roper token enters the battlefield, Essence Warden triggers, causing you to gain 1 life.
Each Lurking Roper you control triggers, untapping themselves.
Repeat.
You may also target any nonlegendary creature you control.
This elegant loop centers on Agatha's Soul Cauldron holding an exiled Kiki-Jiki, Mirror Breaker, granting its legendary tap ability to any creature you control that carries a +1/+1 counter. Lurking Roper provides the engine by inherently refusing to untap normally, but when the cloned token copy enters the battlefield, Essence Warden steps in to reward you with a life gain trigger. That single drop of life immediately untaps Lurking Roper and its token copy thanks to the Roper's passive ability, leaving them primed to tap and copy again. The colored mana restrictions are effortlessly smoothed away by Agatha's Soul Cauldron's first ability, letting you churn out an endless army of hasted tokens and life until your victory is absolute.