Sorry Xiroey, but I had already started judging and stuff.
Change the effect of the ability Pressure.
PP Drain Boost - UltiMario
Creativity: 7/10
Competitive: 7/10
Sexiness: 7/10
I like the idea, but the PP drain isn't really big deal for anything but 8 PP moves. Draco Meteor users probably wouldn't mind, since that's more of a hit-and-run (or hit-and-OHKO) move. Substitute now is one of the only things holding this back from being absolutely amazing. Weavile is jumping for joy, Aerodactyl will love it but might hesitate with Stone Edge, all of the legendary dogs would love it. Absol might not like it so much, as Sucker Punch is already pretty easy to dodge. Deoxys formes, Dialga, Palkia, and Mewtwo can now OHKO everything several times over, though Ubers was already a very offensively-paced tier, so this might not be as drastic a change as I think.
Average score: 7/10
Reverse Accupressure - TheReflexWonder
Creativity: 7/10
Competitive: 6/10
Sexiness: 7/10
You summed up my thoughts on this ability pretty well. Could either be devastating or useless on walls. However, I disagree with your opinion on luck-based effects. Just because there already is a lot of luck in Pokemon doesn't justify throwing in more. If anything, it'd be ideal to reduce the impact that luck has on Pokemon. But that's neither here nor there, as this flavor of hax is the kind you can rely on (it'll likely be afflicing your opponent over many turns), like Machamp's Dynamicpunch confusion hax.
Average score: 6.7/10
Exit Hazard - Xonar
Creativity: 6/10
Competitive: 8/10
Sexiness: 8/10
Cool idea here. I like how it works a passive Pursuit. Definitely helpful on the walls Dusclops, Dusknoir, and Spiritomb, who can force switches. On Weavile and Aerodactyl, it makes revenge killing more effective, since switching out to avoid a speedy sweeper means taking some signficiant damage if you also take into account entry hazards. Also, RestTalk Aerodactyl with Roar and Whirlwind lolol
Average score: 7.3/10
Flinch - Bing
Creativity: 7/10
Competitive: 6/10
Sexiness: 7/10
Probably should note that that the way flinch chance is calculated would be pretty inconsistent. King's Rock and Razor Fang give a multiplicative 10%, but this ability would give an additive 20%? Regardless, this ability could be interesting. 20% flinch isn't too bad by itself, since it requires you to be faster than your opponent. Stacking flinch chance also probably wouldn't be too bad, since most flinching moves have pretty low base powers. Deoxys with Zen Headbutt is one exception. That **** would be ridiculous. Aerodactyl with Rock Slide, Iron Head, and maybe Bite is a sizable buff, though you're sacrificing quite a bit of power, and you're still really frail. Overall, I'd say this ability is a bit too hax-y for my tastes, but it probably wouldn't be overpowered.
Average score: 6.7/10
Congratulations to this week's winner,
Xonar!
This week's prompt:
Deadline: Sunday, May 27 at 12:00 midnight CDT
Create a Pokemon-specific item (ie, Light Ball and DeepSeaTooth).