Lotus Ring + Puresteel Paladin + Marneus Calgar + Fervor

Lotus Ring

Puresteel Paladin

Marneus Calgar

Fervor

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 clever loop lets you turn Marneus Calgar's token-making ability into a self-sustaining engine, fueled by the mana from Lotus Ring and the passive cost reduction of Puresteel Paladin. With Fervor granting your newly created Astartes Warriors immediate haste, you can tap and sacrifice them the moment they hit the battlefield to feed the Lotus Ring's sacrifice ability. Meanwhile, Puresteel Paladin's metalcraft ability reduces the equip cost to zero, and Marneus Calgar's triggered abilities keep your hand completely full as the tokens arrive.