Guess I will give a go here!
RSE
Starmie @ Leftovers
Trait: Natural Cure
EVs: 40 HP / 252 SAtk / 216 Spd
Timid Nature (+Spd, -Atk)
- Surf
- Ice Beam
- Thunderbolt
- Recover
I wasn't in the golden days of ADV, but playing it recently I have found most people don't even expect this set. It seems that almost everyone expects the Rapid Spin set and when they feel safe that I don't have a third coverage move, they get smacked. Since speed is absolute in ADV without boosting, it makes a great revenge killer against faster threats. Midgame when it gets worn down it can heal up against certain bulky waters, like Milotic, for free. Starmie makes a pretty good switch when you are absolutely uncertain what your opponent is going to do (blind switch). Status means it can switch out to heal, an attacking move it can heal up at another point in time, or if they switch to a hard hitting threat chances are Starmie has the good coverage to take it out. Where it really shines is in the endgame. Compared to her Gen 4/Gen5 counterpart, Starmie is relatively weak attacker. But once stuff is weakened, she can safely outspeed them and almost certainly hit them for a good amount to kill with its coverage.