I don't think it really fits in this deck as it is not an outright aggro deck like Burn or Zoo but rather a midrange deck with a lot of burst damage potential using big hasty threats and burn spells.
Personally if I'd add a non-eldrazi I'd rather pay 3-mana for Tireless Tracker to generate card advantage and grow in size.
Thoughts on Domri Rade in this deck ?
Drawing more creatures can be good and eldrazi work well with the fight ability (much better than using Ulvenwald Tracker in early versions of the deck).
I was actually considering Tracker and Copter in the flex slots for a build without BBE (which I'm not convinced about for this deck).
Thicket works much better with the manarocks over the dorks so it is probably a slightly different approach to the deck.
With 4x Talisman I can see some number of Mutavault (or Ghost Quarter) as an option for the deck for some more utility.
With Ancient Stirrings I think that having less than 4x Caverns is ok since you can dig for them if it gets countered it means less counters for the creatures.
I wonder why the deck isn't playing Talisman of Impulse (or more Mind Stone) over the mana dorks to be less vulnerable against early removal spells.
Way back I was playing talismans as a way to ramp, but I was also playing sweepers maineck. I never wanted to play dorks because the sweepers would just kill them, but I was always a turn behind on my ramp because of it. Dorks provide you a mana advantage right from the start, allow for a T2 TKS, and can provide you more coloured mana when you have Caverns and temples in hand. Exalted is also really night on a Reality Smasher as it an attack past Anglers. Removing sweepers to the sideboard and playing dorks in the main is clearly the way to go.
With all the bolts and pushes around I don't know if dorks are the more reliable plan which also explains why "Bant Eldrazi" has practically disappeared from the competitive scene.
Having more targets for Stirrings is also good.
I'm just not sure if the color-fixing of Talisman outweighs the cantripping of Mind Stone in this deck.
Maindeck sweepers don't seem like a great idea for the deck anyway, especially with Obligator.
What do you think about Smuggler's Copter in this deck (1-2x copies) ?
It is a Stirrings hit and provides evasion and looting to the deck.
Another card which might be playable here is Tireless Tracker (potentially in the Ooze slot) to provide the some card draw to the deck.
A copy of Sea Gate Wreckage doesn't sound too bad in this deck as well (I play one in all my Eldrazi decks).
As far as the 1x Forked Bolt flex slot what about a copy of Crater's Claws (ferocious is very reasonable here and this can be a finisher in the deck)
or maybe Lash Out (as a Searing Blaze imitation, this deck should be good at clashing) ?
Some more "boring" options can be Flame Slash/Roast.
And here is a more obscure version with Eldrazi Mimic and Warping Wail -
https://www.channelfireball.com/videos/red-green-eldrazi-modern-channel-pardee-time/
Personally if I'd add a non-eldrazi I'd rather pay 3-mana for Tireless Tracker to generate card advantage and grow in size.
Only way to improve this ratio is either to replace the mana dorks with Talisman/Mind Stone (which I'm trying) or replace the non-eldrazi creatures with Eternal Scourge/Blight Herder which would probably require some Relics in the main to support.
Scion Summoner (pretty much an overcosted Nest Invader) doesn't seem good enough, even something like Vile Redeemer looks better.
Drawing more creatures can be good and eldrazi work well with the fight ability (much better than using Ulvenwald Tracker in early versions of the deck).
https://www.mtggoldfish.com/deck/962396
This list packed both Domri and copy of Hanweir Battlements which seems like a decent utility land though the deck has a lot of haste creatures already making it mostly TKS and Reshaper as targets.
Thicket works much better with the mana rocks over the dorks so it is probably a slightly different approach to the deck.
With 4x Talisman I can see some number of Mutavault (or Ghost Quarter) as an option for the deck for some more utility.
With Ancient Stirrings I think that having less than 4x Caverns is ok since you can dig for them if it gets countered it means less counters for the creatures.
With all the bolts and pushes around I don't know if dorks are the more reliable plan which also explains why "Bant Eldrazi" has practically disappeared from the competitive scene.
Having more targets for Stirrings is also good.
I'm just not sure if the color-fixing of Talisman outweighs the cantripping of Mind Stone in this deck.
Maindeck sweepers don't seem like a great idea for the deck anyway, especially with Obligator.
It is a Stirrings hit and provides evasion and looting to the deck.
Another card which might be playable here is Tireless Tracker (potentially in the Ooze slot) to provide the some card draw to the deck.
A copy of Sea Gate Wreckage doesn't sound too bad in this deck as well (I play one in all my Eldrazi decks).
As far as the 1x Forked Bolt flex slot what about a copy of Crater's Claws (ferocious is very reasonable here and this can be a finisher in the deck)
or maybe Lash Out (as a Searing Blaze imitation, this deck should be good at clashing) ?
Some more "boring" options can be Flame Slash/Roast.
BtW, another 5-0 list was published with BBE and looks better than the previous one (no more Blood Moon in the SB).
https://www.mtggoldfish.com/deck/951917
https://magic.wizards.com/en/events/coverage/ptrix/deck-tech-rg-eldrazi-grzegorz-kowalski-2018-02-03
And some gameplay videos:
http://www.starcitygames.com/article/36600_Video-Daily-Digest-Christmas-Eldrazi.html
http://magic.tcgplayer.com/db/article.asp?ID=14446
I wonder why the deck isn't playing Talisman of Impulse (or more Mind Stone) over the mana dorks to be less vulnerable against early removal spells.
Ancient Stirrings finding Crumble to Dust isn't something I thought about before and seems like a good combination to deal with other Tron/Ramp decks.
This list looks very strange.
Why would an Eldrazi deck play Blood Moon (even in the SB) ? This is just bad deckbuilding.
Maindeck Relic also looks very mediocre here in a list without processors or Eternal Scourge, it can probably be Goyf instead.
Hazoret seems pretty redundant in a deck that has Reality Smasher, it can probably be replaced by a removal spell like maindeck Explosives/Dismember or maybe Smuggler's Copter as an evasive threat/looter.