Lotus Ring + Puresteel Paladin + Marneus Calgar + Purphoros, Bronze-Blooded

Lotus Ring

Puresteel Paladin

Marneus Calgar

Purphoros, Bronze-Blooded

How it works

1. Activate Marneus Calgar by paying 6, creating two 2/2 Astartes Warrior creature tokens.
2. When the Astartes Warriors enter the battlefield, Marneus Calgar triggers, causing you to draw a card.
3. Activate Lotus Ring's equip ability by paying 0 due to Puresteel Paladin, attaching it to an Astartes Warrior.
4. Activate the Astartes Warrior with Lotus Ring attached by tapping and sacrificing it, adding 3.
5. Repeat from step 3 for the remaining Astartes Warrior.
6. Repeat from step 1.

This fascinating loop turns Marneus Calgar's mana sink into a self-sustaining engine by leveraging the passive cost reduction of Puresteel Paladin. Once you have enough artifacts to enable metalcraft, Puresteel Paladin makes the equip cost of Lotus Ring completely free, allowing you to strap the artifact onto the tokens you generate. You then tap and sacrifice those equipped tokens using Lotus Ring's ability to refund three mana, fueling Marneus Calgar's ability to repeat the entire process. Meanwhile, Purphoros, Bronze-Blooded sits on the board granting haste if needed, ensuring all the pieces are primed for this explosive sequence.