dont lock core mechanics behind build dependent dungeons

please allow multiple options for ascendencies. certain builds cannot do sanctum nearly as easy as others; if we can choose between mechanics further in the story, please add that to the first dungeon. sanctum sucks as a mechanic in poe1, and it sucks even more in poe2.

please ggg, allow us to block mechanics we don't like <3

Other than that, loving the game so far.