Byrke, Long Ear of the Law + Crystalline Crawler + Aggravated Assault

Prerequisites

• Crystalline Crawler has at least five +1/+1 counters on it.
• Crystalline Crawler does not have summoning sickness and cannot be blocked and killed by an opponent.

Steps

1. 1Declare Crystalline Crawler as an attacker.
2. 2Byrke's second ability triggers, doubling the number of +1/+1 counters on Crystalline Crawler.
3. 3Move to your postcombat main phase.
4. 4Activate Crystalline Crawler's first ability five times by removing five +1/+1 counters from it, adding .
5. 5Activate Aggravated Assault by paying , causing you to untap all creatures you control and to get an additional combat phase after this one.
6. 6Repeat.
7. 7If Crystalline Crawler has at least six +1/+1 counters on it, this combo nets infinite +1/+1 counter doubling.

Effects

• Infinite +1/+1 counters on certain creatures
• Infinite colored mana
• Infinite combat phases
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control