Marwyn, the Nurturer + Whip Silk + Malachite Talisman

Marwyn, the Nurturer

Whip Silk

Malachite Talisman

How it works

1. Activate Marwyn by tapping it, adding at least .
2. Activate Whip Silk by paying , returning it to your hand from the battlefield.
3. Cast Whip Silk by paying , targeting Marwyn.
4. Malachite Talisman triggers, causing you to pay 3 to untap Marwyn.
5. Repeat.
6. If Marwyn has power six or greater, this combo nets infinite mana, and you may then target any other permanent using Malachite Talisman's ability.

This clever engine revolves around Marwyn, the Nurturer generating massive amounts of green mana, provided her power has reached six or greater. To sustain the loop, Whip Silk is repeatedly cast and bounced back to your hand for a cheap green mana, which naturally triggers Marwyn's growth whenever she re-enters—though here, the Aura's primary job is simply serving as a green spell to fuel the engine. Every time that green spell is cast, Malachite Talisman steps in to untap Marwyn for a minor mana investment, turning the surplus green energy into a self-sustaining loop that yields infinite mana and an arbitrarily high storm count.