Ultron, the Living Automaton

{4}: Create a 1/1 colorless Ultron Drone artifact creature token with "Ultron has indestructible".
{1}{w}: Artifact creatures you control gain +0/+1
until end of turn.
{2}{r}: Artifact creatures you control gain +1/+0
until end of turn.
{3}{u}: Artifact creatures you control gain flying
until end of turn.