Kithkin Spellduster + Phyrexian Altar + Thran Vigil

WB identity

Commander legal

The 3 combo pieces

• Kithkin Spellduster
• Phyrexian Altar
• Thran Vigil

How to execute it

1. Activate Phyrexian Altar by sacrificing Kithkin Spellduster.
2. When Kithkin Spellduster dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Thran Vigil triggers, putting a +1/+1 counter on Kithkin Spellduster.
4. Repeat.

What the combo produces

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