Vo'dor the Mad God

+1: Draw a card, target creature gains madness with either +2/-2 or -2/+2 and becomes mad(owners choice).
-3: Vo'dor the Mad God becomes an X/X creature with madness and indestructible where X is the number of mad creatures on the field until end of turn.
-8: Deal X damage to target creature or player where X is the amount of creatures with madness on the field.