Trypho, Well of Willpower

Sorcery Spells you cast gain Flash.

Whenever you cast a noncreature spell, create
a 1/1 Spirit creature token.

Trypho, Well of Willpower may sacrifice any number of Spirits under their control. For every spirit sacrificed this way, you may gain control of an opponent’s creatures if their total mana values are equal or less than the amount
of spirits sacrificed.