4 comps
SRogue / Mage (RM)
The purest glass cannon in 2v2. Rogue and mage layer more crowd control than any other pair and cash it in for a single, lethal Shatter-plus-stunlock burst window. When the opener lands the enemy is dead before they trinket; when it whiffs, you have no healer to bail you out.
A5s Shadowplay Plus
Shadowplay Plus takes the shadow priest and elemental shaman core and bolts on a frost mage, destruction warlock and holy paladin for a five-caster wall of ranged burst. It kills through raw instant damage stacked into one global, backed by a silence chain no single healer survives. When the burst is peeled, it simply mana-burns the enemy healer into the floor instead.
AWMP (Warrior / Mage / Priest)
Trade RMP's rogue for a warrior: less CC on the kill target, more raw burst and healing pressure. Shatter + Mortal Strike stacks huge damage while Poly and Mana Burn lock the enemy healer.
C5s DPS Zerg
The all-in 5s archetype: four DPS (arms warrior, sub rogue, frost mage, SL/SL warlock) stacked behind a single discipline priest. You don't win the long game — you CC the enemy healer, dump every cooldown on one target, and delete them before your lone healer runs dry.