Dragon Age 2 - Best Served Cold is the second main plot quest in Act 3. For this walkthrough, players will infiltrate and destroy a secret society of both mages and Templars attemping to overthrow Knight-Commander Meredith's cruel reign as the Templar leader. The quest has several difficult fights including both mages and templars, which require special combat strategies.

1. Speak with the first enchanter at the Templar Hall in the Gallows.
   
2. Visit Hightown at night to observe the secret meeting.
3. Quickly dispatch the mages before you kill the Templars.
   
4. Go to the Docks at night and follow the quest arrow. You will be attacked a few times on the way.
   
5. Go into the Warehouse.
   
6. Take out the mages (the enchanter first) and then the Templar archers quickly in the warehouse fight, and protect your mages as usual. It’s a good idea to move your mages down to the boats near the water, so that the melee attackers are more likely to go on your tank.
   
7. As soon as you’re done with the mages and archers, switch your tank to the Lieutenant and clean up the Templar Hunters before killing him.
8. Note: Make sure to loot the chest in the east side of the main room. It will contain an item needed for a companion quest later on.
9. Go to the resistance stronghold on the Wounded Coast. Follow the mini-map quest arrow as usual.
   
10. This fight is also pretty difficult, and is quite similar to the one at the Docks earlier. Once again, start out by killing the main mage – in this case, Grace. Quickly bring her down using interrupts and stuns so that doesn’t cast or teleport away. Keep in mind when Grace dies, an Abomination demon will spawn. Take it down quickly as well.
    
11. In the meantime, use your DPS mage to continue AOEing down the weaker Templars and mages around you, and use your tank to agro the Templars running in from behind you. As soon as the Abomination is dead, use Hawke to take out the lesser mages around the corners of the area, before finally switching to the Templars in the back. Also be ready to kill any new mages that spawn throughout the encounter, as they will deal heavy damage if left alone.
    
12. Return to Orsino at the Templar Hall in the Gallows to finish the quest.