Ravishra, the Anointer

Convoke (Your creatures can help cast this spell.
Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Ravishra, the Anointer enters the battlefield with {x} +1/+1 counters and {x} keywords of your
choice. Whenever a creature you control
becomes tapped, for any reason other than attacking, draw a card.