All right, I fixed it up a bit...
Tyranitar
Nature: Adamant
Moveset:
NEW ATTACK: Stone Edge - Massive STAB and still as powerful as before.
Earthquake (PP MAX) - Basic Ground move, really helps
Crunch (PP UP x 2) - Basic hitter, Pesky Psychics
NEW ATTACK: Dragon Dance - Yeah, I decided to give myself Dragon Dance, to a Attack boost. Sword Dance doesn't work on Tyranitar and I won't use PokeSAV. Speed Boost is minimal.
Item: Life Orb
Max. EV for Attack
Idea: Depends on who I face, but usually Sandstorm is affective. This Tyranitar gains a STAB boost for all of it's moves and KO-s most types in 1, maybe 2 hits, and usually turns into a OHKO with Dragon Dance. Stone Edge replaces Giga Impact due to STAB boost and it also can be launched twice IF the attack won't miss. Earthquake is very basic and powerful, Crunch is a great move too, with STAB and item/EV/Nature boost, making it a very dangerous hit against Alakazam.
Cresselia (Shiny)
Nature: Calm
Moveset:
Psychic (PP MAX) - Basic Attack
Substitute (PP MAX) - NOT CHANGED DUE TO: The fact that Substitute is my best stalling attack, which will leave me on the field for a few more turns.
Toxic (PP UP x 2) - The reason for Substitute and the PP UP is if that PkMn healed.
Moonlight (PP MAX) - If Leftovers are too slow, use this
Item: Leftovers
MAX EV for Defense/Sp. Defense
Idea: Well, it starts out with Toxic and then throws in a Substitute for damage resistance and then protects itself and heals with Leftovers and if the enemy destroyes the Sub, make a new one and heal with Moonlight, and sooner or later, Bad Poisoning will KO the other one and do a bit more damage with Psychic.
Infernape
Nature: Modest
Moveset:
Flamethrower (PP MAX)- Basic Fire move + STAB
Nasty Plot- Sp. Attack boost, big hitter here
Hidden Power [Ice] (PP MAX) - Get rid of heavy fighters and Water/Ground/Rock types- no STAB boost, unfortunately.
Focus Blast (MAX PP) - gains STAB...
Item: Expert Belt
MAX EV for Sp. Attack/Speed, 4 for HP
Idea: Starting off with Nasty Plot, Infernape gains a boost for all three moves, with Focus Blast and Flamethrower also having STAB. I replaced Close Combat due to lack of Nasty Boost for Focus Blast, even with unreliable accuracy, but it's a Blissey KO-er. When in doubt, bring out Flamethrower when it's HP is under 1/3rd, meaning, it gets STAB, Expert Boost, Nature/EV boost and Blaze to make it an Overheat that won't make you weaker!