Altar of Dementia + Rattleclaw Mystic + Yedora, Grave Gardener

GUR identity

Commander legal

The 3 combo pieces

• Altar of Dementia
• Rattleclaw Mystic
• Yedora, Grave Gardener

How to execute it

1. Activate Altar of Dementia by sacrificing Rattleclaw Mystic.
2. When Rattleclaw Mystic dies, Yedora triggers, returning Rattleclaw Mystic from your graveyard to the battlefield face down as a Forest land.
3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Rattleclaw Mystic's power.
4. Activate Rattleclaw Mystic's morph ability by paying {2}, turning it face up.
5. Rattleclaw Mystic triggers, adding {G}{U}{R}.
6. Repeat.

What the combo produces

• Infinite blue mana
• Infinite creature LTB
• Infinite death triggers
• Infinite green mana
• Infinite landfall triggers
• Infinite mill
• Infinite red mana
• Infinite sacrifice triggers
• Infinite self-mill