Duties of the Priesthood

Convoke (Your creatures can help you cast this spell.
Each creature you tap while casting this spell pays for {1} or 1 mana of that creature's colour.)
Extort (Whenever you cast a spell, you may pay {w/b}. If you do, each opponent loses 1 life and you gain
1 life.)
At the beginning of your end step, if you gained
3 or more life this turn, create a 1/1 white Cleric creature token.