Recently i got into playing more active again and found great use in a Latias set, which i think might be pretty original:
(F) @ Leftovers
Ability: Levitate
EVs: 248 HP / 68 SpA / 192 Spe
Hasty Nature
- Wish
- Earthquake
- Draco Meteor/Dragon Pulse
- Defog/Hidden Power Fire
This set basically has two purposes, the first is, to support its team by passing the biggest possible wishes.
The second idea behind this Latias is to effectively bait in and heavily damage or even beat Heatran, if it has some prior damage. This cleans the way for Pokemon like Scizor, Talonflame, Manectric etc.
On the third slot i'm using Draco for the maximum damage output, but going more conservative and using Dragon Pulse should work too.
Lastly i've put Defog, since the team i've used this on still needed a reliable defogger and i think Latias fits this role very well, but if you're not in need of it for hazard control, i suggest going for HP Fire to hurt other common switch-ins.