Tyranitar: Come to think of it, a specially-geared Tyranitar would be awesome. I might have to consider getting a Timid Tyranitar...that would certainly throw some people for a loop :P Thank you quite much :D
Ferrothorn: Actually, I was debating giving him T-Wave instead of Spikes, but then I realized how much that would inhibit Gyro Ball, and his only other status move is Toxic. Basically, my idea with him is to set up fora bit, switch out if things get scary, and come back on the support of Vaporeon's Wish to finish setting up.
Excadrill: Ooh, I like the sound of Leichi Berry. Thanks, I'll do that.
Gengar: I guess I'm stuck here... I'll keep the Life Orb as per your suggestion, but I want Shadow Ball for STAB/GhostFighting coverage, but I need Psychic to deal with Fighting types. Grass Knot covers Ground, Rock, and Water, but I already have Thunderbolt for Water, and the rest of my team can take down Ground, Rock, or both (Physical TTar takes Rock; Special TTar takes Ground; Vaporeon takes both; Ferrothorn with Power Whip takes both; Porygon2 takes Ground; Excadrill takes Rock). Also, not a single attack on my team aside from Psychic beats the Fighting type, so I'm not too sure about sacrificing Psychic, and I'm not too sure about sacrificing STAB in the form of Shadow Ball... I think I'm gonna keep his moveset the way it is. Thanks for assuring my choice in Life Orb, though :D
Also, thanks for the compliments about Vaporeon and Porygon2! (or as I call them, Vaporegon2) Gives my self esteem a boost xD