Grenzo, Dungeon Warden, The Cauldron of Eternity, Phyrexian Altar, Dark Ritual, and Coati Scavenger Combo

Grenzo, Dungeon Warden, The Cauldron of Eternity, Phyrexian Altar, Dark Ritual, and Coati Scavenger

Here's how the cards Grenzo, Dungeon Warden, The Cauldron of Eternity, Phyrexian Altar, Dark Ritual, and Coati Scavenger results in Infinite LTB, Infinite ETB, Infinite colored mana, Infinite sacrifice triggers, Infinite death triggers, Infinite storm count, Infinite magecraft triggers, and Put all creature cards with power less than or equal to Grenzo's from your library onto the battlefield

Grenzo, Dungeon Warden

The Cauldron of Eternity

Phyrexian Altar

Dark Ritual

Coati Scavenger

Prerequisites

Grenzo, Dungeon Warden on the battlefield
The Cauldron of Eternity on the battlefield
Phyrexian Altar on the battlefield
Dark Ritual in hand
Coati Scavenger on the battlefield
available

Steps

Cast Dark Ritual by paying , adding
Activate Phyrexian Altar by sacrificing Coati Scavenger, adding one mana of any color
When Coati Scavenger dies, The Cauldron of Eternity triggers, putting Coati Scavenger from your graveyard onto the bottom of your library
Activate Grenzo by paying , putting Coati Scavenger from the bottom of your library into your graveyard, and then putting it onto the battlefield
When Coati Scavenger enters the battlefield, it triggers, returning Dark Ritual from your graveyard to your hand
Repeat
Once you have infinite mana, you may activate Grenzo's ability any number of times