Vigean Graftmage + Mana Reflection + Living Plane

Vigean Graftmage

Mana Reflection

Living Plane

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. Activate that land by tapping it, adding at least four mana due to Mana Reflection.
4. Activate Vigean Graftmage by paying 1, untapping the land creature.
5. Repeat.