Krenko, Mob Boss, Phyrexian Altar, and Crab Umbra

Prerequisites

• Krenko, Mob Boss on the battlefield
• Phyrexian Altar on the battlefield
• Crab Umbra on the battlefield
• undefined

Steps

1. Activate Krenko by tapping it, creating at least three 1/1 Goblin creature tokens
2. Activate Phyrexian Altar three times by sacrificing three Goblin tokens, adding
3. Activate Crab Umbra by paying , untapping Krenko
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite creature tokens