Tahngarth, Wayward Hero

Vigilance, indestructible
Whenever Tarngarth, Wayward Hero attacks
alone, it gains double strike, lifelink, and menace
until end of turn.
Whenever another Minotaur you control attacks
for the first time each turn, you may have it
fight target creature, creatures your opponents
control can't be the target of spells and abilities
more than once until end of turn.