Requires

Jeskai Ascendancy must be on the battlefield. Haze of Rage must be in hand. Selvala, Heart of the Wilds must be on the battlefield. Selvala does not have summoning sickness. Less mana is required if you control a creature with greater than 2 power and/or you have already cast one or more spells this turn. Mana needed:

Steps

1. Activate Selvala by paying and tapping it, adding an amount of colored mana equal to the power of the highest power among creatures you control.
2. Cast Haze of Rage with its buyback cost by paying .
3. Haze of Rage's storm ability and 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 Haze of Rage's storm ability, copying it once for each spell you've cast before it this turn.
7. Resolve all Haze of Rage copies,, giving creatures you control +1/+0 per spell you've cast this turn and returning Haze of Rage to your hand.
8. Repeat.

Results