Ziir, Min-Maxer Supreme

Creatures with broken counters have flying,
deathtouch, double strike, haste, indestructible,
menace, trample, and vigilance. At the beginning
of your upkeep exile all creatures with broken
counters on them.
{5}, {t}: Add a broken counter to target creature.
Activate only as a sorcery. This ability costs
{1} less to for each creature in your party. (Your
party consists of up to one each of Cleric,
Rogue, Warrior, Wizard and Adventurer.)