King, Lord of Tactics

Double Strike, Haste, Flash
When King, lord of tactics comes onto the battlefield,
any number of creatures you control get flash
until the end of the turn.
{t}{b}{b}{w}{w}: Exile target creature an opponent controls.
{x}{2}{b}: {x} creatures cannot be blocked
until the end of your turn where {x} is
the number of extra mana spent.