cooldowns, cooldowns, cooldowns!

An effective tank will keep a rotation of defensive cooldowns going.

By now, you know the layout of the dungeon. Use rampart for the parts that hurt the most. Remember, it's got a refresh timer of 90 seconds, and if brayflox takes you 20 minutes, that's 13 theoretical times you can use it throughout the dungeon.

Keep in mind low blow, stun things whenever possible, and try stunning the largest creature in a group as they tend to be the hardest hitting.