Oh, I've been working on a Doubles team, but so far all I have is core. But according to the OP that's all I really need! \o/
Metagross @ Mega Stone
Jolly, 4 HP, 252 Atk, 252 Speed
Ability: Clear Body (Tough Claws)
- Iron Head
- Protect
- Ice Punch
- Zen Headbutt
Salamence @ Mega Stone
Naive, 20 Atk, 236 Sp. Atk, 252 Speed
Ability: Intimidate (Aerilate)
- Double-Edge
- Protect
- Hyper Voice / Earthquake
- Draco Meteor
Suicune @ Sitrus Berry / Leftovers
Bold, 252 HP, 180 Def, 12 Sp. Atk, 4 Sp. Def, 60 Speed
Ability: Pressure
- Scald
- Tailwind
- Protect
- Icy Wind
Saw a guy running a nice double-mega core with Mence + Metagross that I wanted to try for Hoenn-hype. Metagross+Mence has been fine since Gen 3, and with Megas the basic idea is either Mega Mence + Non-Mega Metagross, or MegaGross and usually leave Mence behind. Mence could run a more physical spread + EQ to break Heatran, the one above is a standard MixMence spread to OHKO 252+ Amoonguss. Suicune dodges a 2HKO from Jolly Khan, with ~19% chance to get 2HKO'd from Adamant D-E. Speed outruns Jolly Garchomp and all things slower in one Icy Wind, and in Tailwind outruns even Timid max Speed Mega Aerodactyl/Alakazam and Scarf Modest Hydreigon.
It's also the obvious Speed Control mon. Might run Calm Mind over Protect but the lack of healing makes me question that. Metagross can function non-Mega, checking off Fairy / Mence / Landog for MegaMence, so that Suicune doesn't have too heavy of a list to handle. Mence doesn't do much non-Mega, just Intimidate and Draco. Could EQ against (BAN ME PLEASE) too.
There's a marked weakness to Thundurus, Mega Gardevoir (Garde+Amoonguss, Metagross threatens both but gets redircted and Spore'd), Mega Swampert teams are rare but I'm fucked. Oh, Char-Y forces me to run MegaMence too.
Have fun :P
that looks like a nice core, but wouldn't Snarl be better than Icy Wind on Suicune? I can see either working, but your two Megas are already fast, plus you have Tailwind on Suicune. Snarl would work really nice with Megamence, which has Intimidate pre mega but is kinda weak on the SpD side, so lowering foe's SpA is nice. Plus Suicune itself is weaker on the special side, as is Gross if you don't mega. Hope this suggestion helps or is at least worth considering:)