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If you don't have Urshifu, Scizor can auto-crit with Focus Energy and X-Scissor, and gets Brick Break to help team mates with screens.
Not immune to Psychic but does resist it and with a double resist for Grass I imagine Scizor would outheal with a shell bell.
The biggest threat would be...
Earth Power has really wide distribution, has good power, accuracy and chance of special defense drops. I wonder if a Tera Stellar Palkia could just overpower Blastoise with a little support and spamming Earth Power.
Gastrodon with Storm Drain comes to mind for Blastoise, but not sure if it could do enough damage for a solo with no set up moves that I'm aware of.
Might be useful for support with access to Mud Slap or Clear Smog depending on what Blastoise ends up doing.
FWIW Frosmoth as an online support mon worked well for me, cleared my first try with a Chesnaught doing all the damage.
Set up Snow / Screens and then spammed Struggle Bug to keep everyone alive. I didn't have any special EV spread because I just used what I had which I think is Modest with...
I might try Frosmoth for support on Venusaur, resists grass and ground and Ice Scales could be useful.
Struggle Bug
Light Screen / Aurora Veil
Snowscape
Heping Hand?
Well my support Umbreon works great in theory.
Full investment in Special Defense and HP with
Skill Swap
Sunny Day (Freezing has been a problem without it)
Snarl
Mud Slap
I say in theory because while I can't die, I also have been unable to match up with anyone to deal enough damage for tackle...
Anyone tried Metagross?
Can set screens and sun, access to mud slap and can hit back with Iron Head/Meteor Mash. Also Metagross looks cool, which has to help, right?
Palkia was an easy solo with a modest Sylveon I had in my boxes already. After 2 Calm Minds it was doing next to no damage, so just Hyper Voice (assuming pixelate) until it went down. I think I used Draining Kiss once, but it might not have been necessary.
Having trouble getting into online...
Doug beat me to it, but Soundproof Kommo-o breaks this raid. Not that it's difficult to begin with, but I actually got 75% through a raid without taking any damage at all. Kept spamming Charm into my Clear Amulet.
I think if my partners were doing actual damage I could've cleared that one...
One nice thing about Dachsbun is you can run the same moves whether for support or attacking. If I'm teamed up with 2 other Dachsbuns who are spamming Body Press, I'll just sit there clicking Snarl. I stopped using Mud Slap because I don't want to take away the defense boosts for teammates...
So I was curious about how easy it would be to game the early tera raids in a playthrough if you traded for a high level mon, brought it to the raids and therefore get really high level AI partners. Admittedly it's not very sporting, but it does seem to work. If I brought in a level 75 mon to a...
As for Taunt with Corviknight, I've had good luck using Drill Peck turn 1 and Taunt on Turn 2 and having it block both Bulk Up and Swords Dance. Drill Peck on Turn 1 does next to no damage, but helps build towards tera. Turn 3 Iron Defense, after that I mix in Bulk Up and Drill Peck. 2 Bulk Ups...