Very similar kit swapping Mage for Warlock - land CC first, since whoever loses their DPS to a stun/fear chain first typically loses the round.
Two healers can out-sustain a single burst window - Mana Burn one healer specifically rather than splitting pressure.
One of the most common matchups on ladder - whoever lands Cheap Shot on the enemy Rogue or Mage first almost always wins the round.
Your burst is faster than their DoTs - Cheap Shot through any Fear attempt and finish the target before Corruption/Curse of Agony matter.