Ashnod's Altar + Furystoke Giant + Hardened Academic

RW identity

Commander legal

The 3 combo pieces

• Ashnod's Altar
• Furystoke Giant
• Hardened Academic

How to execute it

1. Activate Ashnod's Altar by sacrificing Furystoke Giant.
2. When Furystoke Giant dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Hardened Academic triggers, putting a +1/+1 counter on Furystoke Giant.
4. Repeat.

What the combo produces

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