Krenko, Mob Boss, Seedcradle Witch, and Phyrexian Altar

Prerequisites

• Krenko, Mob Boss on the battlefield
• Seedcradle Witch on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Krenko by tapping it, creating at least four 1/1 Goblin creature tokens
2. Activate Phyrexian Altar four times by sacrificing four Goblin tokens, adding Activate Seedcradle Witch by paying , untapping Krenko and giving it +3/+3 until end of turn
3. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite creature tokens
• Infinitely large creature until end of turn
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce