Abathur, Evolution Master

When Abathur, Evolution Master enters the battlefield and at the beginning of your upkeep,
create a 1/1 black/red Zerg creature token
with myriad named "Zergling".
Evolution Complete —{4}{g}, {t}: Choose one —
+1/+1, trample, first strike, vigilance, menace,
or haste. All other Zerg creatures you control
gain the chosen ability until Abathur, Evolution
Master leaves the battlefield.