Pickle Bird, King of the South

Flying, First-Strike, Vigilance, Haste
{t}add {g}{g}{g}
{g}{3} Pickle Bird, King of the South gains
+3/+3 and Trample. Until end of turn.
One target creature you control can gain
flying and haste, as long as Pickle Bird
is attacking.
When Pickle Bird attacks, roll
a d20 for every attacker, the attack
has double-strike on a nat20 roll.