Plague of Vermin, Vindictive Vampire, and Yahenni, Undying Partisan

Prerequisites

• Plague of Vermin in hand
• Vindictive Vampire on the battlefield
• Yahenni, Undying Partisan on the battlefield
• available

Steps

1. Cast Plague of Vermin by paying and choosing to pay any amount of life, creating that many 1/1 Rat creature tokens
2. Activate Yahenni by sacrificing a Rat
3. When the Rat dies, Vindictive Vampire triggers, dealing 1 damage to each opponent and causing you to gain 1 life
4. Resolve the Yahenni ability
5. Repeat from step 2 as able

Results

• Near-infinite ETB
• Near-infinite LTB
• Near-infinite creature tokens for all players
• Near-infinite damage
• Near-infinite death triggers
• Near-infinite sacrifice triggers