Crystalline Crawler + Gideon's Sacrifice + Vigor + Ashen Firebeast

Prerequisites

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Steps

1. 1Cast Gideon's Sacrifice by paying , causing all damage that would be dealt this turn to you or to permanents you control to be dealt to Crystalline Crawler instead.
2. 2Activate Ashen Firebeast by paying , dealing 1 damage to each creature without flying.
3. 3Gideon's Sacrifice redirects damage to Crawler, which results in at least three +1/+1 counters being placed on it instead due to Vigor.
4. 4Activate Crystalline Crawler's first activated ability at least twice by removing at least two +1/+1 counters from it, adding at least .
5. 5Repeat from step 2.

Effects

• Infinite +1/+1 counters on a creature
• Infinite colored mana
• Infinite damage to some creatures
• Lock
• Prevent all damage that would be dealt to you