Dyadrine, Synthesis Amalgam [Edge of Eternities]

Trample
Dyadrine enters with a number of +1/+1 counters on it equal to the amount of mana spent to cast it.
you attack, you may Whenever remove a +1/+1 counter from each of two creatures you control. If you do, draw a card and create a 2/2 colorless Robot artifact creature token.