I was playing double (arms) warrior healer in 3s a few days ago and we did a 12-2 at around 2000 rating.
Tactic was to go for their ranged/healer, force the enemy melee/warrior to peel and cleave them.
Only problems we faced was against comps that we couldn't cleave (caster teams) or had insane crowd control.
Anyone else tried it this season?