Arena PvP strategy
Since the basic arena PvP goal is to kill or be killed and there are no capture objectives or NPCs to kill, makeups of teams and matchups between various classes with coordinated tactics between them are a large part of overall strategy.
One strategy for 2v2, because it has fewer players than 3v3/5v5, is to Crowd Control one player consistently and kill the other off. This is often used by double-DPS teams.
One of the most common teams in seasons past and still to some degree is called a "drain team". This setup uses abilities such as Mana Burn, and Drain Mana to deprive their opponents of mana. Once the point is reached where an opponents healer had gone out of mana It is simple to finish off both opponents. Drain teams were far more common in the arena prior to the changes to resilience that reduced the amount of mana drained by such spells.