Requires

Displacer Kitten must be on the battlefield. Priest of Urabrask must be on the battlefield. Haze of Rage must be in hand. Memory Crystal must be on the battlefield. Mana needed:

Steps

1. Cast Haze of Rage with buyback by paying .
2. Displacer Kitten and Haze of Rage's storm ability triggers.
3. Resolve the Displacer Kitten trigger, blinking Priest of Urabrask.
4. Priest of Urabrask enters the battlefield, adding .
5. Resolve the Haze of Rage trigger, copying it for each spell cast before it this turn.
6. Resolve each Haze of Rage copy, causing creatures you control to get +1/+0 until end of turn.
7. Resolve the original Haze of Rage, causing creatures you control to get +1/+0 until end of turn and returning Haze of Rage to your hand.
8. Repeat.

Results