Phyrexian Altar + Putrid Goblin + Quillspike

BG identity

Commander legal

The 3 combo pieces

• Phyrexian Altar
• Putrid Goblin
• Quillspike

What must be in place

Putrid Goblin does not have a -1/-1 counter on it.

How to execute it

1. Activate Phyrexian Altar by sacrificing Putrid Goblin, adding {B/G}.
2. When Putrid Goblin dies, its persist ability triggers, returning it to the battlefield from your graveyard with a -1/-1 counter on it.
3. Activate Quillspike by paying {B/G} and removing the -1/-1 counter from Putrid Goblin, giving Quillspike +3/+3 until end of turn.
4. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinitely large creature until end of turn