I often lead with a tyrantum and stealth rock. EV'd his HP and attack, and gave him crunch with a quick claw. I've had him one-shot mewtwos (including mega Y) with crunch when the claw procs. In short, hehas beena very effetivemember of my team, enough that I intend to actually IV breed one eventually. I currently use dragon claw, crunch, rock slide, and stealth rock. Not sure if I will even bother breeding fang moves, this set has been pretty good so far.