Any poison/dot/damage doing ability breaks traps, as well as Demoralizing Shout/Growl.
Scorpids (as it was explained to me) have had the amount of AP that applies to it nerfed, so I doubt they are high DPS tanks anymore. If you want a DPS tank hit up a Boar. They can do Gore, and Bite, plus the AP boost from Charge is pretty decent :) (talking 900+ Damage crits)