Phyrexian Altar + Proteus Machine + Yedora, Grave Gardener

G identity

Commander legal

The 3 combo pieces

• Phyrexian Altar
• Proteus Machine
• Yedora, Grave Gardener

How to execute it

1. Activate Phyrexian Altar by sacrificing Proteus Machine, adding one mana of any color.
2. Proteus Machine dies, triggering Yedora, returning Proteus Machine to the battlefield face down as a Forest land with no other types or abilities.
3. Activate Proteus Machine's morph ability by paying {0}, turning it face up.
4. Repeat.

What the combo produces

• Infinite colored mana
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite sacrifice triggers