Grenzo, Dungeon Warden + Workhorse + The Cauldron of Eternity

Prerequisites

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Steps

1. 1Activate Workhorse by removing a +1/+1 counter from it, adding .
2. 2Repeat step 1 until Workhorse dies as a state-based action due to having 0 toughness.
3. 3The Cauldron of Eternity triggers, putting Workhorse from your graveyard onto the bottom of your library.
4. 4Activate Grenzo by paying , putting Workhorse from the bottom of your library into your graveyard, and then putting it onto the battlefield with four +1/+1 counters on it due to its static effect.
5. 5Repeat.

Effects

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB