I've been dormant for far too long.
Baxcalibur: Let's be honest, Brick Break sucks. There's no reason to use it over EQ, since it notably takes out Tran while Brick Break doesn't. One option you should consider is using SD over DD. Since Booster Energy is banned from Mono (unless something drastic happened that I didn't know about), the chances of encountering something that can outspeed at +1 is quite rare (Valiant and Moth (mostly Moth) do still run Scarf, although not as much as they ran Booster back in OU). However, if you just use Cloyster to cleave open the faster mons and use Bax for late-game, SD could work. If you choose to do so, run Jolly, as stuff like Scarf Tusk do exist in Mono and Jolly at least speed ties at +1.
Ninetales-A: DO NOT, under any circumstances, attempt to sweep with Ninetales. This thing is meant for bulk, screen, and (potential) utility. Here is what I mean:
Ninetales-Alola @ Light Clay
Ability: Snow Warning
Tera Type: Ice
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Aurora Veil
- Freeze-Dry
- Moonblast
- Encore
252 SpA EVs are allowed due to the lack of Special Attacking Ice type threats (you got, what, Frosmoth and that's it), however the moveset should be more oriented towards supporting the team. Since Ninetales-A is relatively passive, many mons will try to to setup on it. This is where Encore comes in. Freeze-Dry hits Waters for Super Effective, notably helping against the Rain matchup since it is important to get rid of Pelipper as soon as possible. Moonblast is Moonblast.
Mamoswine: Quite the unorthodox set. If you really want a bulky Ice, I suggest Avalugg, as it has access to reliable recovery, as well as Curse and Body Press to actually deal damage.
Avalugg @ Heavy-Duty Boots
Ability: Ice Body
Tera Type: Ice
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Curse / Iron Defense
- Rapid Spin
- Ice Spinner / Body Press
- Recover
Here is what I mean. Avalugg's stupid Defense, Ice Body, and the Snow boost makes it extraordinarily bulky on the physical side. Both Ice Spinner and Body Press are methods to deal damage, however if you're going with Body Press, go with Iron Defense, as you have nearly no use for the Attack boost from Curse. Recover is the main advantage over Mamoswine, allowing it to more opportunities to wall the opponent. However, Mamoswine is better with mixed bulk and does better against the Fire matchup. The main problem comes from the fact that Fire teams are mostly Sun teams, and Sun teams use Scovillian, which completely ends Mamo, not to mention Ogerpon-Hearthflame. In that case, if both Avalugg and Mamoswine lose to the matchup Mamo is supposed to be better at, why not use the one that is better in more situations?
Sandslash-A: Because of the lack of Icy Rock, Snow only lasts 5 turns. It takes one turn to set up veil. It takes one turn, minimum, to switch into Sandslash. It takes one turn to SD up to make sure its 100 Atk is actually doing damage. All that to get walled by a Steel type. You get the point. There isn't much opportunity for Sandslash to actually inflict meaningful damage on the opponent. That's because Sandslash isn't even the best Slush Rusher to begin with.
Cetitan @ Sitrus Berry / Salac Berry
Ability: Slush Rush
Tera Type: Ice
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Belly Drum
- Icicle Crash
- Ice Shard
- Earthquake
Fun fact: Cetitan's Speed is actually 8 points higher than Sandslash. And it gets Drum to become an immensely dangerous sweeper. It also has a few less weaknesses and an obvious lack of 4x weaknesses. If you want to play with fire (probably not), you can run Salac to boost your Speed more and make it a threat even after Snow ends. It is still quite hit or miss, but that's the nature of Ice teams.
Cloyster: Spikes? Really? I feel like replacing it with Rock Blast is just better, since it provides strong coverage as well as a method to get past Sash Ceruledge, among other threats. Sash is also better than Lefties in most scenarios, or White Herb to make use of the high Defense if you're worried about Avalugg's ability to clear hazards.
Chien-Pao: Consider these options: Since we got such a bulky Spinner in Avalugg, why not drop the Boots and go for Band? Any Defensive wall currently bodies this team, especially Dondozo (Literally only Ninetales can do something to it), and Choice Band can significantly amplify the damage output on Dondozo, 2HKOing it with some chip (by some I mean like 30%, but still). Other than that, this set seems good.
Other Options: To continue adressing the problem with Physical walls, Frosmoth. As I mentioned earlier, Ice teams are usually lacking a Special threat, which is where the Moth comes in.
Frosmoth @ Heavy-Duty Boots
Ability: Ice Scales
Tera Type: Ice
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Substitute
- Quiver Dance
- Giga Drain
- Ice Beam
By maximizing damage output with Modest, Substitute to grab QD opportunities, and Giga Drain hitting the Waters Ice struggles against, QD Frosmoth is a powerful mon to be reckoned with. If you do decide to use it, it's either Cloyster or Cetitan that has to go. Both are hit-or-miss sweepers, with Cloyster being faster and better against problematic matchups like Fire, while Cetitan being a truck. If I have to choose, I'm replacing Cetitan, since Belly Drum can be hard to pull off at times when already sustained chip damage.
And that's it! I don't think Ice is the best type for Mono at this point, however this team is pretty decent. I am glad you have moved on from your ways of Stall, and I hope you can embrace the wonderful world of offense.
