Atla Palani, Nest Tender + Mirror Entity + Hostility

Prerequisites

• You have a way to increase only Atla Palani's toughness by at least one.

Steps

1. 1Increase Atla's toughness by at least one.
2. 2Activate Mirror Entity an arbitrarily large number of times by paying a total of .
3. 3Resolve the first Mirror Entity ability, causing all creatures you control to have base power and toughness 0/0 and gain all creature types until end of turn.
4. 4All creatures you control except Atla die as a state-based action due to having zero toughness.
5. 5If Hostility died this way, it triggers, shuffling itself into your library.
6. 6Atla triggers once for each creature that died.
7. 7Resolve the first Atla trigger, revealing cards from the top of your library until you reveal a creature card, then putting the creature card onto the battlefield and all other revealed cards on the bottom of your library.
8. 8Repeat step 7 for each remaining Atla trigger.
9. 9Repeat from step 3 for each remaining Mirror Entity ability.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite death triggers