Forretress is a great pokemon. It just takes more effort and thinking to play it. It Rapid Spins, Toxic Spikes, Spikes, Gyro Balls. It just can't be played mindlessly like Skarmory. It needs to be played much more conservatively. Survival first, spiking later. Double switches are also key because it lacks Whirlwind and gets set-up on. Wish support is also very neccessary for it imo.
I decided to use Forretress because Wish Blissey just feels better for generic support, and because a spinner is always nice. We don't exactly need Skarmory's Whirlwind when you have Milotic eh? (Whirlwind is much better than Dragon Tail. Skarmory is also more annoying. :\)
Lightsworns are a good deck. Always have, always will be. Rescue Harpies.., I wonder how consistent those can be. Just netdeck a quickdraw deck for Fleur.
If you have 3 electric/grass weaks with 3 resists for each type, you might be okay. I wouldn't call it, or any of those cute teams metagame destructive though.