Captive Drake

When Captive Drake enters the battlefield, it
deals 1 damage to each of up to two target
creatures.
Dosage (Whenever a player casts a spell, put a experiment counter on this creature. At the beginning
of each upkeep, if there are five or more experiment counters on it, remove all of them and transform it.)
"I hope they gave it the right amount for its weight."
—Octave, the Ferryman