Cryogonal's isn't a good dual screener in OU because of its poor defensive typing (Ice), which gives it common weaknesses to Fire, Rock and Fighting. Espeon is a better dual screener thanks to Magic Bounce reflecting most statuses right back:
-Reflect
-Light Screen
-Psychic/Psyshock
-Hidden Power (Fighting/Ground/Fire)
Nature: Timid
EVs: 252 HP/4 Def/252 Spe
Item: Light Clay
Ability: Magic Bounce
Confuse Ray is a bit risky to use on Sableye. I'd use this set:
-Will-o-Wisp
-Recover
-Taunt/Toxic
-Night Shade/Foul Play/Knock Off
Nature: Careful
EVs: 252 HP/120 Def/136 SDef
Item: Leftovers
Ability: Prankster
Explosion got nerfed in Gen V, so I think Rock Blast is a better alternative due to it benefitting from Skill Link and not hitting your partner. (use this EV spread: 48 HP/252 Atk/208 Spe)
Don't use Zap Cannon on Eelektross unless you're using a mixed Coil set because it has poor accuracy. Also, some tweaks to your set to make it effective:
-Acid Spray
-Thunderbolt
-Flamethrower
-Grass Knot/Hidden Power (Ice)
Nature: Modest
EVs: 252 HP/252 SAtk/4 SDef
Item: Leftovers/Expert Belt
Use Agility on Metagross and have it hold an Air Balloon (EVs should b 52 HP/252 Atk/204 Spe)