I’ve tested Oblivion before on dark one conjurer (sr100 should be possible) and bloodknight cabalist (sr90+ viable), it works well with celestials either. Should be good on ritualist too. Try it with Nightbringer because of high weapon damage.
Yeah since the changes to Oblivion of 70% WD to 100% makes 2Hs stronger, Nightbringer seems like a natural candidate - especially with what you said about in game experience (it even looked strong on paper when I took a look at it on grimtools w/o trying it in-game).
Originally/currently I wanted to see if I can still make 1h work well because of stuff like the generally higher cast speed (mainly for Nightbringer since it has no cast speed, other 2Hs like Wildblood Crusher still have great speed) to make good use of the sizeable flat damage bonuses from Soul Harvest/Blood Pact plus some synergy from converting some of RE’s Acid to Vitality.
You are someone I respect, so that’s a big plus for 2H Oblivion (and Oblivion in general) in my books
Conjurer with it I’ve tested before buff and it worked good so now general concept of dark one set + oblivion is even better for sure. Even greenless is okay if you use Mythical Pestilence of Dreeg with high rolled chaos->vitality. Casting speed is a pain but it’s not bad with diamond in helmet + chauses of barbaros + some devotions for it. I don’t know about ritualist but you have another sources of damage too like totems/sigil (on conjurer ofcourse) so you can kill Ravager under 3 min still and AOE is good.
Very fun to play relic for me, something like red vitality forcewave
Oblivion is definitely gonna be stronger on 2-handed but after the buffs it’s gotten, I like it on 1-handed casters as well. This Sentinel for example gets a sheet DPS of 114k on it with Hungering Void + Ascension and it isn’t even the sole focus - the 4 fully converted Guardians also put in a significant amount of damage.
BBblades is perhaps better but not sure. I haven’t test them face to face. But both have their places, even Acid Purge full vitality with Oathkeeper Presence of Virtue have value.
When you talk about Biting Blades, mind that 70% WD is x2, cause it’s boomerang skill and come back, doing another 70% Weapon Damage. Oblivion have better AoE range though. And relic can be crafted with 4% DA, vitality builds lack DA. And then spirit, racial bonus. Tough question which is better