Vigean Graftmage + Living Plane + Shimmerwilds Growth

Vigean Graftmage

Living Plane

Shimmerwilds Growth

How it works

1. Play the land that taps for multiple mana.
2. That land enters as a creature due to Living Plane, triggering Vigean Graftmage's Graft ability, allowing you to move a +1/+1 counter from Vigean Graftmage to that land.
3. Cast Shimmerwilds Growth by paying 1, attaching it to that land and choosing "blue".
4. Activate that land by tapping it, adding at least two mana.
5. Shimmerwilds Growth triggers, adding at least one additional mana.
6. Activate Vigean Graftmage by paying 1, untapping the land creature.
7. Repeat.