Blackrock Foundry: Heroic Gruul Video & Overview
-Overwhelming Blow will cause massive damage on the main tank, and anyone within 10 yards. This will leave a DoT, causing damage to ramp up with each time the tank is hit. The main tank will need to position himself to be the only one getting hit by this, while the off tank stays off to the side to avoid being hit.
-Overhead Smash is cast during Phase 1, causing a large line of ground effects and will need to be avoided by everyone in the raid.
-Petrifying Slam will knock back players, slowing them and turning them into stone. Gruul will cast Shatter, shattering players' stoneforms and causing damage to anyone within 8 yards. Players will need to spread just after the knockback to avoid sharing Shatter damage.
-Cave Ins will occur during Phase 2, causing large rocks to fall from the ceiling into an easily visible ground effect. Everyone will need to move out of these.
-Destructive Rampage will cause Gruul to become untankable, have increased haste, and cause 4 quick Overhead Smashes. This is cast every 2 minutes, and players will need to move quickly to avoid damage.