Gruul the Dragonkiller exploit (Bloodscalp gold)
If you’ve ever attempted this beast you know how a single ground slam can ruin your attempt.
When your raid gets the message that a ground slam is incoming; drink a dreamless sleep potion, while sleeping you will NOT get thrown around.
You can use the cheap pots even and the cooldown will be ready by the time another ground slam is due.
Work this into your plan and have everyone positioned 20yds away from eachother at all times. You can even have places for your melee dps to stand and pop a pot.