Mika, Image-Crafter

Tap a permanent you control: Create a 1/1 Eidos
(it has Defender and "Tap, sacrifice this Eidos:
Take control of target non-land permanent).
{t}, Sacrifice X number of Eidos. You lose 1/2 X
Life. Then, if X is greater than target opponent's
Life total, that opponent loses the game.
Sacrifice Mika: Reconfigure {10}
Flashback—{w/u}{w/b}{u/r}