Xal'tur, Doom Given Form

Eminence—All creatures other than Wurms and Hellions come into play with a Defender counter on it unless their controller pays {2}. Each creature with a Defender counter has, "{2},{t} remove a defender counter from this creature".

The first Wurm and Hellion spell under your control that is cast this turn has cascade.

{x}{g}{r}—Wurms and Hellions gain +X/+X until end of turn.
Extinction doesn't negotiate.