Lazy Eye

Got this today after trying out a couple of different strategies. Spreading out and stacking up can both work, but they get hairy after about 30 seconds or so when the eyes start getting really close to people.

This is going to sound silly, but we had the easiest time by simply sacrificing 2 of our DPS at around 80% HP on the boss and we left up our tank, healer, and 1 DPS for the eye phase. The 3 of the remaining people split into a triangle formation on the edges of the room and simply dodged eyes in their own area, moving as needed, and we one shot it like this with no problems at all. We happened to have two druids, so we brez'd the dead DPS after the phase was over and cleaned him up, though I wouldn't be surprised if 3 people could finish him off just as well.

Good luck!

The [item=6797] might come in handy while doing this achievement.
Don't forget to get your upgrade in Warlords of Draenor: [item=118024].

We tried this several times. The best way we found was to have one person with a mark over their head. Everyone follow that person, and just rotate around the room. We made a full circle, and completed the achievement that way. Stay near the fire wall.

You only have to endure the eye dodging phase one time. Also, you can wipe and come back in if someone in the party fails at dodging the eyes.