Ardveck, The Golden Blade

Whenever a creature enters the battlefield under
your control, it gains Haste until end of turn.
Whenever Ardveck, the Golden Blade attacks,
other attacking creatures you control get +2/+0
until end of turn. Then Ardveck, the Golden
Blade deals damage equal to the number of
attacking creatures you control that entered
the battlefield this turn to target creature or planeswalker.