Requires

Jeskai Ascendancy must be on the battlefield. Elvish Fury must be in hand. Viridian Joiner must be on the battlefield. Viridian Joiner does not have summoning sickness. Less mana is required if Viridian Joiner's power is greater than 1. Mana needed:

Steps

1. Activate Viridian Joiner by tapping it, adding an amount of equal to its power.
2. Cast Elvish Fury with its buyback cost by paying .
3. Jeskai Ascendancy's first and second abilities trigger.
4. Resolve the first Jeskai Ascendancy trigger, giving your creatures +1/+1 until end of turn and untapping them.
5. Resolve the second Jeskai Ascendancy trigger, allowing you to loot.
6. Resolve Elvish Fury, giving Viridian Joiner +2/+2 and returning Elvish Fury to your hand.
7. Repeat.

Results