Ariad, Grand Advisor

Whenever you draw a card create a 1/1 Human
Citizen creature token that's all colors.
Whenever a creature enters the battlefield under
your control you may pay {2}, if you do put a
+1/+1 counter on a creature you control.
Whenever one or more +1/+1 counters are put on
a creature you control you may pay {2} if you do
draw a card.