Screenshots have appeared which indicate that the heroic-only boss Ra-den of the upcoming Throne of Thunder raid dungeon has a 30 attempts limit on the current PTR build. This model of limiting tries and thus increasing the difficulty of killing an encounter is nothing new but hasn't been used by Blizzard since Lich King in Icecrown Citadel. Another mechanism of prolonging the life of an encounter was used back in Ulduar. The heroic-only boss Algalon had a time limitation of 1 hour per reset which is a model we haven't seen implemented again since then.
So do you guys like attempt limitation? Do you think a time limit like on Algalon would be better? Let us know your thoughts!