Furystoke Giant + Hardened Academic + Phyrexian Altar

RW identity

Commander legal

The 3 combo pieces

• Furystoke Giant
• Hardened Academic
• Phyrexian Altar

How to execute it

1. Activate Phyrexian 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 colored mana
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers