Ashnod's Altar + Tribal Forcemage + Yedora, Grave Gardener

G identity

Commander legal

The 3 combo pieces

• Ashnod's Altar
• Tribal Forcemage
• Yedora, Grave Gardener

How to execute it

1. Activate Ashnod's Altar by sacrificing Tribal Forcemage, adding {C}{C}.
2. Tribal Forcemage dies, triggering Yedora, returning Tribal Forcemage to the battlefield face down as a Forest land with no other types or abilities.
3. Activate Tribal Forcemage by tapping it, adding {G}.
4. Activate Tribal Forcemage's megamorph ability by paying {1}{G}, turning it face up with a +1/+1 counter on it.
5. Tribal Forcemage triggers, giving all creatures you control of a chosen creature type +2/+2 and trample until end of turn.
6. Repeat.

What the combo produces

• Infinite colorless mana
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite sacrifice triggers
• Infinitely large creatures you control until end of turn