Gimmick's BW2 OU Rain team! ^-^

[Major problem!
Toxicroak (Bulk Up and Swords Dance)]

Politoed (M) @ Choice Specs
Trait: Drizzle
EVs: 224 HP / 252 SAtk / 32 Spd
Modest Nature (+SAtk, -Atk)
- Hydro Pump
- Ice Beam
- Hidden Power [Grass]
- Focus Blast

Keldeo-R @ Choice Scarf
Trait: Justified
EVs: 252 SAtk / 4 SDef / 252 Spd
Timid Nature (+Spd, -Atk)
- Secret Sword
- Hydro Pump
- Icy Wind
- Hidden Power [Electric]

Ferrothorn (F) @ Leftovers
Trait: Iron Barbs
EVs: 252 HP / 88 Def / 168 SDef
Impish Nature (+Def, -SAtk)
- Stealth Rock
- Spikes
- Thunder Wave
- Power Whip

Tornadus-T (M) @ Choice Specs
Trait: Regenerator
EVs: 4 Def / 252 SAtk / 252 Spd
Timid Nature (+Spd, -Atk)
- Hurricane
- Sleep Talk
- U-turn
- Hidden Power [Ice]

Genesect @ Choice Band
Trait: Download
EVs: 8 HP / 252 Atk / 4 SDef / 244 Spd
Adamant Nature (+Atk, -SAtk)
- U-turn
- Iron Head
- Zen Headbutt
- Explosion

Terrakion @ Choice Band
Trait: Justified
EVs: 252 Atk / 4 SDef / 252 Spd
Jolly Nature (+Spd, -SAtk)
- Close Combat
- Stone Edge
- Quick Attack
- Earthquake

I am legitimately thinking about using HP Psychic over HP Electric on Keldeo for Toxicroak. It also hits Amoonguss and Breloom, so it's not a bad trade. Plus, HP Electric is just for Gyarados, which Ferrothorn covers anyway. I do want Surf on Keldeo as well. Is HP Psychic worth it? I also get a chance to say, "you just got fucking HP Psychic'd by a Keldeo" to someone. I guess Genesect's Zen Headbutt, Terrakion's Earthquake, and Tornadus' Hurricane can all do massive damage, but if it gets a Sub, I generally lose one of those. And if my opponent uses it as a late game sweeper when everything is weakened, I can't exactly do anything about it. I'd rather kill it early game with Keldeo when they don't expect it.