I was just looking at Mamoswine's new tutor moves, and i'm surprised nobody has taken notice of Endeavor. I mean, Mamoswine is immune to sand/hail, has Ice Shard for priority, and can also abuse Snow Cloak by Subbing down to 1 HP. I said, "why not" and made this set up quickly :U
Mamoswine (M) @ Salac Berry / Brightpowder
Ability: Snow Cloak
EVs: 176 HP/84 Atk/16 Def/232 Spd
Adamant nature (+Atk, -SAtk)
- Earthquake
- Ice Shard
- Substitute
- Endeavor
Since Mamoswine is immune to both sand and hail and has a priority attack in Ice Shard, I have always been hoping that it would someday learn Endeavor. In Platinum, my wish was granted :D
This set is kind of similar to the Endeavor Swampert moveset, mainly because one wouldn’t expect this type of moveset on Mamoswine (just like how nobody would expect Endeavor on Swampert). This set is also meant to be on a team with Abomasnow, so that it can Substitute down to 1 HP while abusing Snow Cloak. Earthquake and Ice Shard both get STAB and also provide excellent type coverage. Although it may seem redundant to have both Ice Shard and Salac Berry on the same set (not to mention the fact that most Pokemon won’t even survive the Endeavor if hail is in play), it’s always useful to have a priority move, just in case you come across something like a Rain Dance Deoxys-E. Besides, it’s not like Mamoswine has a lot of other useful moves it can use, right?
The EV spread gives Mamoswine 405 HP, which allows it to use Substitute four times (leaving it at 1 HP) while also giving the Substitutes 101 HP each, meaning it will take two Seismic Tosses to break each one. The 16 Defense EVs make sure that a standard Bronzong’s Earthquake will not break Mamoswine’s Substitutes. This will be helpful against Bronzongs without Gyro Ball, or Bronzongs who are trying to conserve their Gyro Ball PP. The 232 Speed EVs give Mamoswine 254 Speed, which is enough to outspeed Modest Choice Scarf Heatran after a Salac boost. The remaining EVs were put into Attack.
Brightpowder is another item that could be used on this set, if you want to further abuse Snow Cloak. If you do use Brightpowder, however, I recommend making Mamoswine Jolly and moving 4 Attack EVs to Speed. This will give Mamoswine 280 Speed, which is enough to outspeed Adamant Lucario and other Pokemon with base 90 Speed.