Chandra, Chaotic Pyromancer

When Chandra enters the battlefield, it deals
3 damage to any target.
Whenever a source you control deals noncombat damage to any target, you may pay {2}{w/u}. If you
do, put a +1+1 counter on target creature, or a
loyalty counter on target planeswalker.
Creatures you control with +1+1 counter on
them have "{t}, tap one untapped creature you
control: Add one mana of any color."