Careful Cultivation + Umbral Mantle + Biomancer's Familiar
How it works
- Activate the creature with Careful Cultivation and Umbral Mantle attached by tapping it, adding .
- Activate the creature by paying 1 and untapping it, causing it to get +2/+2 until end of turn.
- Repeat.
This clever setup turns any creature into a powerhouse by layering a massive mana advantage with a recursive untap loop. First, you use Careful Cultivation to enchant your creature, transforming it into a heavy-hitting mana producer that taps for two green mana. At the same time, Umbral Mantle is equipped for free to grant an untap ability that pumps the creature's stats. To make this engine self-sustaining, Biomancer's Familiar steps in with its passive discount, reducing the Mantle's untap cost from three mana down to just one. Because the tap ability yields two green mana while the untap only costs one, you can loop these activations indefinitely to generate infinite green mana and grow your creature infinitely large until the end of the turn.