Xiphox, Crazed by Success

Allliance: When you cast this spell you may search your library for a creature card with alliance, reveal it, and put it into your hand
Whenever a player casts a creature with toughness less than Xiphox's, put a +1/+1 counter on Xiphox.
As long as Xiphox's power is 6 or greater it has shroud and you may cast instants and sorceries from your hand without paying their mana cost.