D.va, Fierce Competitor

Haste
D.va, Fierce Competitor has flying as long as it's attacking
When D.va, Fierce Competitor dies, create a 1/1 blue Human Pilot creature token called Pilot D.va with "At the beginning of the next upkeep, put a mech counter on Pilot D.va, if Pilot D.va has 4 or more mech counters, exile it and return D.va, Fierce Competitor from your graveyard to the battlefield under your control."
"I play to win!"