Focus together
Before the first pack, ask which mark means the priority target and who will start the fight. Stay on that target until a switch is called. Removing one enemy promptly eases pressure on healing; spreading damage everywhere is not always the best way to help.
Plan your interrupts
Agree on an order: “I take the first cast, you take the second.” Save your interrupt for that assignment and speak up when it is unavailable. A stun, silence and interrupt are different tools. Against an immune enemy, do not assume another form of control will work.
Keep crowd control intact
Check controlled enemies before using area damage. A carefully prepared pull can fall apart when a stray hit frees one of them. Hunters need to plan traps together: the current class update gives them a shared cooldown. Leave a safe path for a target that escapes.
Positioning is part of your job
Stay within reach of your healer and avoid pulling another pack for one more attack. Leave dangerous ground even when it interrupts your damage window. Follow carefully when the tank rounds a corner: a wall between you can cut off support.
When an enemy turns on you
Bring the enemy towards the tank rather than fleeing across the room. Use an available defensive, reduce unnecessary pressure and call the problem clearly. Fear or uncontrolled displacement can bring in extra enemies; choose a response that fits the available space.
After a bad pull
Pick one concrete cause: the wrong target, overlapping interrupts, broken control or poor positioning. Change that one thing on the next attempt. Use your specialization guide for its talents and abilities; a damage number alone does not explain the fight.
Example: three enemies, one plan
Two melee enemies and an interruptible caster stand ahead. The tank marks the first target. One player handles the dangerous cast; another saves a backup. Stay on the marked enemy while watching the caster. Separate a controlled target from area damage. Announce an incoming patrol immediately. This is one possible plan for this situation; the actual enemy abilities determine what makes sense.
Use the tools you actually have
As a Mage, Counterspell can stop suitable casts; agree on any additional control assignment beforehand. As a Hunter, traps help, but enemy movement and their shared cooldown matter. Do not promise a direct interrupt merely because another class has one. Check your learned abilities and chosen talents. A level-60 guide does not automatically describe what a young character can do. Use your specialization guide to understand the tools for your current assignment.
Three questions before the next pull
Who starts? Which enemy goes first? Which ability am I saving for a specific moment? Those answers form a workable plan. If the healer stops, check for a recovery break instead of pulling. Announce a different tactic before trying it. Fewer surprises make the run calmer. After a failure, correct the actual mistake rather than changing every ability and talent indiscriminately.