Raiden Shogun, Inazuma Ruler

Whenever Raiden Shogun attacks, you may pay
{x}{r}. If you do, Raiden Shogun deals X damage
to target creature, player or planeswalker.
Whenever you cast a non-creature spell, Raiden
Shogun deals 1 damage to each opponent and you
gain 1 life.
{r}{r}: Raiden Shogun gains indestructible until end
of turn.
"The lightning shall strike, and the thunder shall roar.
All will fall before the eternal will of the shogun."