Monastery Flock + Phyrexian Altar + Yedora, Grave Gardener

GU identity

Commander legal

The 3 combo pieces

• Monastery Flock
• Phyrexian Altar
• Yedora, Grave Gardener

How to execute it

1. Activate Phyrexian Altar by sacrificing Monastery Flock, adding {U}.
2. When Monastery Flock dies, Yedora triggers, returning Monastery Flock from your graveyard to the battlefield face down as a Forest land.
3. Activate Monastery Flock by tapping it, adding {G}.
4. Activate Monastery Flock's morph ability by paying {U}, turning it face up.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite green mana
• Infinite landfall triggers
• Infinite sacrifice triggers