Den Protector + Phyrexian Altar + Yedora, Grave Gardener

G identity

Commander legal

The 3 combo pieces

• Den Protector
• Phyrexian Altar
• Yedora, Grave Gardener

How to execute it

1. Activate Phyrexian Altar by sacrificing Den Protector, adding {1}.
2. When Den Protector dies, Yedora triggers, returning Den Protector from your graveyard to the battlefield face down as a Forest land.
3. Activate Den Protector by tapping it, adding {G}.
4. Activate Den Protector's megamorph ability by paying {1}{G}, turning it face up.
5. Den Protector triggers, returning any card from your graveyard to your hand.
6. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite landfall triggers
• Infinite sacrifice triggers
• Return all cards from your graveyard to your hand