Dr. Boom, Explosive Genius

When Dr. Boom, Explosive Genius is cast, create
X 0/1 Boom Bot artifact creatures with
"Sacrifice Boom Bot, deal 1 dmg to any target.".
At the start of your upkeep, you may create up
to Y Boom Bot where Y is equal to
Dr. Boom, Explosive Genius's power.
MARVEL AT HIS MIGHT!