OK, the absolute randomness of DT Runes *sucks*.
Change the altars so that we can insert runes and PICK the next tier of rune instead of this random nonsense. Up the cost in number of runes to 6 and add a cost of 50 Draconic runes or something to offset it. When turning in ONE sovereign rune (plus draconics), you get to pick ONE eldritch. Still have to farm quite a bit, but no more ridiculous hamster wheel.