Grenzo, Dungeon Warden, Tuktuk Rubblefort, Skirk Prospector, The Cauldron of Eternity, and Krenko, Mob Boss

Prerequisites

• Grenzo, Dungeon Warden on the battlefield
• Tuktuk Rubblefort on the battlefield
• Skirk Prospector on the battlefield
• The Cauldron of Eternity on the battlefield
• Krenko, Mob Boss on the battlefield
• Grenzo has a power of at least three

Steps

1. Activate Krenko by tapping it, creating at least three 1/1 Goblin creature tokens
2. Activate Skirk Prospector twice by sacrificing a Goblin token and Krenko, adding
3. Krenko dies, triggering The Caludron of Eternity, putting Krenko on the bottom of your library from your graveyard
4. Activate Grenzo by paying , putting Krenko into your graveyard from the bottom of your library, then putting it onto the battlefield
5. Repeat

Results

• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite red mana
• Infinite sacrifice triggers