Flenreath, Mercenary Captain

At the beginning of your upkeep step, create a
tapped Treasure token or gain one life for each Mercenary an opponent controls.
{2}: Create a 2/2 red Human Mercenary creature
token with haste and "This creature can't attack a player who controls Flenreath, Mercenary
Captain." This costs {1} less to activate during
your combat phase. Any player may activate this ability.