Awesome, UB Reanimator!
I'm pretty sure there's a good deck some how there, but it's very, very tricky to build. Yours, 3B, is doing some very cool things, and the games it comes together I'm sure it will be just awesome. I am a bit suspicious of its consistency though. You're trying to find early pressure, discard outlets, re-animation, early interaction, and re-animation targets, and it just doesn't look like the deck has enough of any one of those to be reliable. I'm also a bit suspicious of any UB deck that isn't running Ob and five-drop Jace. I like the idea of hexproof re-animation targets, as we're getting some great bounce stuff, and getting your T5 Ulamog bounced back to your hand feels bad. Linvala might also be interesting. There's logic behind the Lilliana/Marauder package, but I'm not sure in this specific iteration that it's better than Artificer's Epiphany. The extra card selection and discard outlet could make the deck a lot more consistent.
GBR, I love the Call the Bloodline as a one-of concession to aggro and repeatable discard outlet. Good thinking.
Another great re-animation target is Greenwarden of Murasa, because it's a loop - you can get back the Summons with it's ETB ability.
Finally, I think there might be something good to do with
Ghoulsteed. It's a discard target that's also a discard outlet, which is pretty cool.
On the Abzhan Control list: I respect the good early/good late goal with your two and three drops, but I don't think delirium is the way to go for Abzhan. Also, I think you want, maybe even need, 4x
Sylvan Ranger and 4x
Explosive Vegetation in the list. The power level has gone up a ton, and even Superfriends Control can easily kill you on turn 7 now, while Ramp is still insane and Reanimator could be a real threat also. I think it's critically important for three-color control decks to make their land drops and meet their colored mana requirements very consistently, because you won't have time to draw out of problems in this meta. I strongly suspect Abzan Control should be running all three of Greenwarden, Bellower, and Ulvenwald Hydra. Remember that the death-trigger bug on Greenwarden is getting fixed, making that a much better card, and Bellower can now fetch Sylvan Advocate to put 11 power and 11 toughness on the board while buffing any of the four creature lands you have in play. I've been really impressed with Ulvenwald Hyrdra in testing. It's huge, blocks anything, and gets you a Shambling Vent.
I'm suggesting eleven different cards that I think you should add, so what should you cut? I'd suggest removing the entire delirium package of 3x vessel (Explosive Vegetation only costs one mana more and is so much more powerful), 2x dead weight, and 3x Moldgraf Scavenger, and get the other three from trimming visionaries and/or celestial flare. I'm skeptical of celestial flare in this list. You've got 15 white sources, and that isn't enough to reliably cast it early, and it's been pretty darn hit and miss in general. CGB and I both tested it in WB Control and were quite disappointed with the card. Grasp of Darkness would almost certainly be an upgrade.
Switching to the 4x Sylvan Ranger and 4x Explosive Vegetation would both allow and require you to improve your lands too, going with a lot more basics while actually improving the number of sources you have for each color. The land base you've got will often have you playing a turn behind as so many come into play tapped.
Also, Kalitas is bustedly strong and if you're playing more than a couple spells that kill rather than exile, he should be in any deck that can consistently cast him on curve. Seriously, he's one of the best cards in Standard. We should play him.