Mamoswine as a
Check
Mamoswine @ Choice Band / Life Orb
Ability: Thick Fat
EVs: 240 Atk / 16 SpA / 252 Spe
Naive Nature
- Earthquake
- Icicle Crash
- Ice Shard
- Freeze-Dry / Knock Off / Superpower
Mamoswine is a soft-check to Zygarde. It can't switch in at all due to having a chance of being OHKO'd by CB Outrage and Thousand Arrows 2HKOing it, but it's able to threaten it with STAB Ice attacks. Furthermore, it avoids the 2HKO from E-Speed, so Mamo has to be weakened for Zygarde to avoid being killed by Ice Shard. While LO is the more common item for Mamo, LO actually misses out on actually OHKOing Zygarde with Ice Shard so CB might be better for teams that are weaker to it. However, Zygarde is fairly easy to get chip damage on since your opponent might bring it in on a resisted attack like a Fire Blast or something. Forcing a switch can allow Mamo to cripple something with Knock Off or lure something with Freeze-Dry as well.
252+ Atk Choice Band Zygarde Extreme Speed vs. 0 HP / 0 Def Mamoswine: 144-170 (39.8 - 47%) -- guaranteed 3HKO
252+ Atk Choice Band Zygarde Outrage vs. 0 HP / 0 Def Mamoswine: 324-382 (89.7 - 105.8%) -- 37.5% chance to OHKO
0 - 0%
240 Atk Life Orb Mamoswine Ice Shard vs. 0 HP / 0 Def Zygarde: 296-348 (82.9 - 97.4%) -- guaranteed 2HKO
240 Atk Life Orb Mamoswine Icicle Crash vs. 0 HP / 0 Def Zygarde: 614-723 (171.9 - 202.5%) -- guaranteed OHKO