Urza, Prince of Kroog + Bag End Banquet + Hammer of Purphoros

Urza, Prince of Kroog

Bag End Banquet

Hammer of Purphoros

How it works

1. Activate Urza by paying 6, creating a token copy of Bag End Banquet that is a 1/1 Soldier in addition to its other types.
2. When the Bag End Banquet token enters, it triggers, creating three Food tokens.
3. Activate the Bag End Banquet token by tapping it, adding C for each Food you control.
4. Repeat

This wonderful engine uses Urza, Prince of Kroog to forge a token copy of Bag End Banquet for six mana, and because that copy enters the battlefield as a 1/1 Soldier artifact, it immediately triggers to generate three fresh Food tokens. Once you have enough Food to net a mana profit, you can tap that token copy via its own ability to produce colorless mana, funding the next iteration of Urza's activated ability. Meanwhile, Hammer of Purphoros grants all these newly minted artifact creatures haste, while Urza's static pump conveniently keeps your growing army of copy tokens out of harm's way with a +2/+2 bonus.