Spike Stack Strategic Combo
(F) @ Focus Sash
Ability: Snow Cloak
EVs: 4 HP/252 SpA/252 Spe
Nature: Timid (+Spe, -Atk)
- Spikes
- Shadow Ball
- Thunderbolt
- Ice Shard
(M) @ Leftovers
Ability: Solid Rock
EVs: 252 HP/4 Atk/252 SpD
Nature: Impish (+Def, -SpA)
- Stealth Rock
- Roar
- Earthquake
- Stone Edge
This combination may seem odd at first, but is one I have used to great success on my Spike Stack teams. In the lead position, Froslass gets easy Spikes against everything except Ambipom, Alakazam, and Electrode (two of which she kills anyway), and after Rhyperior does well against almost every lead, so after Froslass goes down, he can setup Stealth Rock. Their synergy isn't based on switching into resisted attacks, but instead, it's that together they can setup hazards on most of the tier.
There are several problems this pair faces, mostly due to Rhyperior's weaknesses. Venusaur can setup on Rhyperior, and Froslass can't switch in, therefore a fast fire type such as Arcanine or Houndoom is a great partner to this team. Fire types that pack enough power to OHKO Rhyperior with Hidden Power [Grass] (only Modest LO Moltres in UU) also are a problem, which means that bulky waters such as Milotic or Azumarill also make great partners to this team.
[By the way to those who think the Froslass set is odd, it is Froslass way of beating countless leads with a combo of a certain attack and Ice Shard. For example, Alakazam would always win, but now it is KOd, and often teams don't have more than one pokemon faster than Froslass.]