Myr Welder + Umbral Mantle + White Lotus Tile

Myr Welder

Umbral Mantle

White Lotus Tile

How it works

1. Activate Myr Welder using White Lotus Tile's ability by tapping it, adding at least three mana of any color.
2. Activate Myr Welder by paying 3 and untapping it, giving it +2/+2 until end of turn.
3. Repeat.

To pull off this dizzying loop, Myr Welder must first consume White Lotus Tile from the graveyard, borrowing its colored mana generation and tapping ability to fuel the engine. Once equipped with Umbral Mantle, the welder gains the crucial untap ability that its own native card text doesn't provide. By tapping to generate mana and spending just three of it to untap via the mantle's zero-cost equip, you effortlessly cycle the loop to amass infinite colored mana and an infinitely large creature.