Leyline Immersion + Cloudstone Curio + Nature's Chosen

Leyline Immersion

Cloudstone Curio

Nature's Chosen

How it works

1. Activate the legendary creature with Leyline Immersion attached by tapping it, adding 3 that can only be spent to cast spells.
2. Cast Nature's Chosen by paying , attaching it to the legendary creature.
3. When Nature's Chosen enters the battlefield, Cloudstone Curio triggers, returning Leyline Immersion to your hand from the battlefield.
4. Activate Nature's Chosen's first ability by paying 0, untapping the legendary creature.
5. Cast Leyline Immersion by paying 3, attaching it to the legendary creature.
6. When Leyline Immersion enters the battlefield, Cloudstone Curio triggers, returning Nature's Chosen to your hand from the battlefield.
7. Repeat.