Ban'thalos help (Quests and such)
That's the quest your looking for, you manage to complete that, the bird is yours.
I did not do any more quests, so I had to corpse-drag myself through the wall of flames to get to Skarr.
If you jump on the floating rocks and fall, there are no Druids to "save" you so it's another corpse run.
I lucked out and saw Skarr my first attempt. I was standing on the shelf before the jumping rocks and was in close enough range to tame him. Once tamed, he jumped over the floating rocks to me so it saved me another corpse run.
If you don't like corpse runs, you could do enough dailies to get the quest to go through the flame walls to get to Skarr.
The fire spiders have various spawn points, one near the fire wall (be sure to use cameo so you dont pull him and get silenced and nuked by the aoe effect he hass, his taming trick involves a floating rock), one on the floating island (freeze trap him twice then tame), one un the underground cave near the spider area (kite him untill his energy bar gets low, keep concusive shot and freeze trap up on him and run like hell), and dethtalic has to be dpsed while kiting untill his health is low (if he melees you he may very well kill you).
Outside the molten front, Banthalos, ankha and magria are available apon being able to enter the molten front, we can now survive banthalos's ranged moon fire attack, so the trick will be taging him and landing on something with out dying. Anka and magria however, you stil have to remove all gear that has even the slightest amount of armor on it, as they deal more damage based on how much armor you have.
magria and anka share spawn points along the area with the druids, fire elementals, floating boulders, and spirits of malorne.
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