would Mienshao work better with Ice punch from BW2, or is Hidden power(Ice) a better alternative to beat the pokemon its uses its ice move on? if so to ice punch should jolly be used instead and of Naive and will the point in speed that it gains from not using hp allow it to outspeed something that countered it previously or make much difference?
Assumming LO All-Out Attacker Mienshao:
- Standard Gliscor is not OHKOed by Ice Punch, but is OHKOed by HP ice.
- Landorus is OHKOed by both (Landorus-T will live Ice Punch because of Intimidate).
- Dragonite dies to both after SR and without SR it doesn't matter because lol multiscale.
- Salamence is OHKOed by both, but Intimidate 'Mence can survive Ice Punch without SR on the field.
Since those are the "main" targets for the attack, I'd stick with HP ice, because it reliably KOes all of them (bar MS Dragonite but yeah).
If using Ice Punch, yes, use Jolly, since Mienshao would then have no special attacks at it's disposal. However, I'd stick with HP Ice.
The single point in speed allows Mienshao to tie with opposing Mienshao and Zoroark (but IIRC there's a certain combination that allows you to keep 31 Spe with HP Ice).