One piece -if you could make you own devil fruit what would it be

Well, I have a really OP fruit in mind for a long time now, but that's no fun. Let's see here, hmm... How about a Mimikku Mimikku no Mi? (Mimic Mimic Fruit) Paramecia - Allows user to mimic anything they see (if Luffy uses his Elephant Gatling, the user of the Mimic Fruit can too, but at 50% power) It's a rare Paramecia fruit because it's the only fruit that would allow a DF user to swim (assuming they saw someone swimming before and copied them. Only need to see something once and the user can permanently learn how to do it) Cool thing is, the user can also turn intangible when seeing a Logia user turning intangible. Has Kizaru ever been kicked at the speed of light? Also, since it can only mimic something at 50% of the original power and speed, you can also use it on yourself. Adding 50% of your current power everytime. Ideally this would be a very OP fruit, but the downside is that you need to charge before using it again and it has a time limit (let's say you are going to go up against Akainu. Normally if it's a 1v1 no prep battle, then it's in Akainu's favor. However if Akainub gets prep and so do you, you might be able to wreck him. If you keep multiplying your strength and speed by 50% of your current stats for about an hour of prep, no doubt Akainu won't stand a chance... But it has to be done in less than a few seconds. The stronger you mimic, the shorter the time limit) The fruit can either be really OP depending on the prep or straight up useless and fodder against even Usopp

The 'Clear Clear no mi', the ability to willfully see through clothes!!! XD Jk. But if I did have that power, I could beat Sanji-san with no problems. Just touch him, too, so he can also see through clothes, and let him get a look at Nami-schwan and Robin-chin, and I win! lol... though I'd lose against Zoro, Luffy, Chopper, and even against Usopp... not to mention a lot of other guys: Law, Smoker, Kizaru, CP7, Don Krieg, all the Amazons, etc. P.s. notice how I said "willfully"; no way in heck am I going to willfully look at a guy!!! I'd go blind! P.s.s I think Oda-sensei had this in his SBS somewhere. He's as perverted as I am lol

Hmm... !!!*lightbulb*!!! The 'Saiya Saiya no mi'!!! I'm sure everyone can guess what that does lol. Zoan type; normal allows you to have a tail and gain Saiyan strength, human allows you to go SSj1, and beast form allows you to turn into a Great Ape! Ohhhh Yeahhhh! And, and... eating a Rumble Ball will turn you into [Great Saiyaman]~...!!! Bad idea...? Oh, well...

Reaper Reaper no mi, allows you to separate from your body and become a Shinigami!!! ... Although, you can only fight Perona and Gekko Moriah...