[Sunday]

All calcs done with standard EV's and Natures. Please keep in mind you can not have both max Satk an Max Atk.

Max Atk Brickbreak vs OU Blissey 44%-52% - 2hko with SR
Max Satk Focus Blast vs OU Blissey 29.65%-35%
Max Satk Ice Beam vs Breloom 173%-204%
Max Atk X-scizzor vs Relaxed Bronzong 47.63%-55.93%
Max Satk Bugg Buzz vs Relaxed Bronzong 35.8%-42%
Max Satk Blizzard vs Celebi 98%-115.35%
Mas Satk Ice Beam Vs Celebi 77.97%-92.58%
Max Satk Bugg Buzz Vs reSTalt Cresselia 47.97%-56.53%
Max Atk Night Slash vs Dusknoir 39%-46.25% Wow, something it has trouble with.
Max Satk Blizzard vs Dusknoir 41.5%-48.98 Needs SR to 2HKO

Will do more in 10 mins...

Max Satk Blizzard vs Forretress 42.66%-50.28%
Max Satk Bugg Buzz vs wish varient Jirachi 37.16%-43.89%
Incase anyone is wondering, Hp [fire] isn't a better option for Jirachi and Bronzong as it does almost exactly the same due to STAB on Bugg Buzz.
Max Satk HP [Fire 70] vs Jirachi 38.65%-45.64%
Max Atk Brick Break vs Magnezone 46.40%-54.32%
Max Satk Blizzard Vs Rhyperior Garunteed 1HKO
Max Satk Blizzard vs Skarmory 79.34%-93.11%
Max Atk Brick Break Vs Roosting Skarmory 30.54%-36%
Max Satk Bugg Buzz Vs Slowbro Garunteed 1HKO
Max Satk Blizzard vs Tangrowth - I presume it's a 1HKO.
Max Satk Blizzard vs Weezing Garunteed 1HKO
Max Satk Blizzard vs Mixpert 107.23%-126.18%
Max Satk Bugg Buzz vs Vaporeon 60.94%-71.65&
max Satk Bugg Buzz vs Suicune 65.20-76.49&
Max Satk Bugg Buzz vs Suicune + one CM 43.56%-51.24%

There. If anyone wants anymore than I can do them. Brick break is a surefire 1HKO on Tar I presumed.