Kalesh, Captain of Kher

Call to Serve-When your commander deals combat damage to a player, you may put this card onto
the battlefield from outside the game. When it leaves the battlefield, remove it from the game.
Lieutenant-As long as you control your commander, Kalesh, Captain of Kher gains
"Whenever this creature attacks, attacking kobolds you control gain +X/+0 until end of turn, where X is the number of attacking kobolds you control."