Source: #225

Item: https://www.wowhead.com/item=184062/gnawed-reins-of-the-battle-bound-warhound

As far as I know, the mount can drop from the first kill of each day only, for each of the rares found in the Theater of Pain area. Therefore, we should check the questID used for defeat detection and prevent any attempts while it is completed, but differentiate between the individual rares (utilizing the defeatSteps property?).

Most rares can't be looted after they've been killed once. Apparently, these can? That means multiple attempts are detected even if the mount can't actually drop. Will have to check ingame to see what's going on first, though.

Added via fa897bf.

Multi-step defeat detection is not considered because it's not currently needed.