Fire Resist for Alar the Phoenix God
Contains answers to your questions.
Al'ar is sometime spelled Alar, which might explain why it did not show up in Searches.
1. Adds in Phase 2 are tanked by the offtank(s) that were tanking them at the bottom of ramps in Phase 1. They are killed by ranged DPS. Bears can charge, Prot. Paladins can range-taunt, Warriors can taunt. Quigon, in his Protection Warrior thread, gives a nice little tip for this : after the meteor landed, Al'Ar's tank can Thundercalp, thus grabbing the 2 adds until the offtanks come and taunt them off him. Good timing is required not to be bumped away by the whirlwind, however.
2. Melee is on Al'Ar at all times in Phase 2. We ask our offtanks to mark their add with a Raid icon, meaning that this add must die. If there is no icon on the adds, ranged DPS are on Al'Ar.
3. Only our ranged DPS are killing adds, and only when our offtanks ask for it (by putting a raid symbol on an add). Sometimes, they'll ask for DPS when they tank one add only, and sometimes, they'll be tanking up to 4 adds before asking us to kill one.