Koll, the Forgemaster + Phyrexian Altar + Obsidian Battle-Axe + Mogg War Marshal

Koll, the Forgemaster

Phyrexian Altar

Obsidian Battle-Axe

Mogg War Marshal

How it works

1. Cast Mogg War Marshal by paying 1.
2. Mogg War Marshal enters the battlefield, triggering itself and Obsidian Battle-Axe.
3. Resolve Obsidian Battle-Axe's trigger, attaching it to Mogg War Marshal.
4. Resolve Mogg War Marshal's trigger, creating a 1/1 Goblin creature token.
5. Activate Phyrexian Altar twice by sacrificing the Goblin token and Mogg War Marshall, adding .
6. Mogg War Marshall dies, triggering itself and Koll.
7. Resolve Mogg War Marshal's trigger, creating another 1/1 Goblin creature token.
8. Resolve Koll's trigger, returning Mogg War Marshal from your graveyard to your hand.
9. Repeat.
10. Once you have infinite creature tokens, you may activate Phyrexian Altar any number of times to add infinite mana.