It was soloable at level 80, and is trivial at level 85. The only danger is Malchezzar's infernals when he reduces you at 1 hp.
Magtheridon's lair:
Once a fast way to gain 500 gold, it has now been nerfed to 50. Still gives an achievement and a head, though.
MagtheridonGear: 0/5
Strategy: 2/5
Pull the 5 adds, and misdirect them to your pet. Feign death to avoid the trash aggroing you. Then, kill the adds one by one. To do that, dps an add to 70% while maintaining a full focus bar, the taunt him and run away from the others, out of range from their heals. Your target will try to heal himself once below 50%. Interrupt and finish him. Rinse and repeat until all adds are dead.
Then, tank and spank Magtheridon.
Gruul's lair:
Gold nerfed here once again.
MaulgarGear: 2/5
Strategy: 2/5
Send your pet in, and kill Blindeye immediately by using all of your dps CDs. Interrupt his heals. Once he is dead, kill the rest.
The hound can be useful to have attacking you because he will break sheep.
You can also try to maul Maulgar down faster than Blindeye will heal him. Requires good gear and a bit of luck with all the crowd controls going on.
GruulGear: 0/5
Strategy: 0/5
Tank and spank.
