Aggravated Assault + Bear Umbra + Pako, Arcane Retriever

Prerequisites

• Bear Umbra attached to Pako.
• You control lands that can tap to produce at least .
• An opponent is unable to block and kill creatures you control.

Steps

1. 1Declare Pako as attacker.
2. 2Pako and Bear Umbra triggers.
3. 3Resolve the Pako triggers, exiling the top card of each player's library and putting a fetch counter on each of them, putting a +1/+1 counter on Pako for each noncreature card exiled this way.
4. 4Resolve the Bear Umbra triggers, untapping all lands you control.
5. 5Proceed to your next main phase.
6. 6Activate Aggravated Assault by paying , untapping all creatures you control and getting an additional combat and main phase after this one.
7. 7Repeat.

Effects

• Infinite combat phases
• Infinitely large creature