Springheart Nantuko | Doubling Season (and one other card)

Card that Earthbends

Cards

You have a land card in hand.
You are able to play a land this turn.
You control a land that doesn't have summoning sickness and that can tap to produce at least ({G} magic symbol) .

({2} magic symbol) ({G} magic symbol) plus enough mana to animate the land available.

Earthbend a land that can tap to produce at least ({G} magic symbol) , thus animating it.
Cast
Springheart Nantuko for its bestow cost by paying ({1} magic symbol) ({G} magic symbol) , attaching it to the animated land.
Play any land.
When the land enters the battlefield,
Springheart Nantuko triggers, causing you to pay ({1} magic symbol) ({G} magic symbol) to create two token copies of the land it is attached to due to
Doubling Season.
When the land tokens enter the battlefield,
Springheart Nantuko triggers twice.
Holding priority, activate the two land tokens by tapping them, adding at least ({G} magic symbol) ({G} magic symbol) .
Resolve the first
Springheart Nantuko trigger, choosing not to pay and create two 1/1 Insect creature tokens due to
Doubling Season.
Resolve the second trigger, causing you to pay ({1} magic symbol) ({G} magic symbol) to create two token copies of the land it is attached to due to
Doubling Season.
Repeat from step 5.

This combo has been estimated to be Exhibition (Bracket 1+).