Lotus Ring + Puresteel Paladin + Marneus Calgar + Jinnie Fay, Jetmir's Second

Lotus Ring

Puresteel Paladin

Marneus Calgar

Jinnie Fay, Jetmir's Second

How it works

1. Activate Marneus Calgar by paying 6, creating two 2/2 Cat creature tokens with haste.
2. When the Cats 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 a Cat.
4. Activate the Cat with Lotus Ring attached by tapping and sacrificing it, adding 3.
5. Repeat from step 3 for the remaining Cat.
6. Repeat from step 1.

This clever loop relies on Marneus Calgar to fuel the mana and card draw engine, though Jinnie Fay, Jetmir's Second steps in as a token replacement effect to turn those generated bodies into swift cats with haste. Puresteel Paladin is the true mechanical linchpin of the combo, granting a metalcraft discount that drops the equip cost of Lotus Ring to zero so you can seamlessly attach it to your newly minted tokens. Once the ring is equipped, you simply tap and sacrifice the creature for a sudden burst of mana, feeding right back into Marneus Calgar's activated ability to keep the cycle spinning infinitely.