mine would be the master ball just like on pokemon heartgold it will catch any pokemon without fail lol

tonetone714 : the Evoball ----->MIGHT<----- make pokemon like pichu,gastly,wailmer and syther hard to catch -----

Weather Ball. I don't know if anyone has said this or not.
Makes Pokemon easier to catch if Rain Dance, Sunny Day, Hail or Sandstorm is used. Also works well in fog.

And yes, I already know that it's also an attack exclusive to Castform.

Normal conditions: x0.5
Weather conditions: x4

Cost: 1200

I would create a Fusion Ball. You can catch up to two pokemons, so it would make two great pokemons be 1 powerful great pokemon. I would catch a fire-type and a water- type pokemon, so it would be water and fire- type pokemon. It would have great moves, and it would be a great Poke'ball.

For the Fusion Ball, I would also add a feature that can make you fight 2 wild pokemon in a double team match. Then you can use the fusion ball to catch the 2 pokemons.

I would call that ball Fusion X Ball.

How about the Mind Ball. You can throw it at an enemy's pokemon and try to catch it. It would be sucky if your opponent catch your pokemon using a Mind Ball, but that's when you use a Mind Powder for your Pokemon to hold, to prevent your opponent to catch your Pokemon.

Also how about an Element ball. There could be many different element ball like fire, water, and grass, to make it easier to catch that type of pokemon.

I have 2.

My 1st would be the gold ball. it is rare and expensive, but it has a 90% catch rate and rases the atack, defense, speshal, speed, hp, and pp by 5. it also makes the pokemon frendler. It is sparkely gold on the top, and (not sparkily) silver on the bottom.

The 2nd one, my brother made up. the look-a-like golden ball. it is rare and lowers the atack, defense, speshal, speed, hp, and pp by 5. it also makes the pokemon meaner. it is a terible ball. it sells for cheap. the diference is that the silver is sparkily, and the gold is not. isnt the golden ball great?

Never would of thought of making a poke ball, but now that you mention it, I'd make a ball called the Chaos Ball. It would make pokemon with high speeds or pokemon that are Ghost or Dark type easier to catch. (Gengar better watch out!)

i would create a freeze ball if i could. this pokeball would make it easier to catch ice and water types. if the pokemon escapes, they become frozen. if its an ice type or a pokemon with magma armor, their stats decrease by 2 (helps with using false swipe and a shedinja to not cause problems).
price:1000

I would make the hunting ball.

-catch rate multiplier of one
-no exeptions

When a Pokemon breaks free of this ball for the first time in a visit to a city/route/dungeon all the other pokemon you will find there will be that pokemon. For example you find an Beldum in route 220, it breaks free but all other wild encounters on that route untill you leave are Beldums

-great for level grinding rare pokemon that give lots of experience.
-secondary effect does not work on any Legendary
-when chaining using the pokeradar and you use this ball all you will find is that pokemon untill you leave the route even when starting another chain

I would Invent a Cool Ball, which turns every Pokemon catch it look very cool for example you can add sunglasses on your squirtle or a hat on pikachu. But that's just me.

I would make a hunter ball that if used on pokemon like poochyena or ratatta, it will have a 40x catch rate.

blaze1997 : What is a Pokemon like Poochyena or Rattata? Is It a common pokemon? A first Stage Pokemon?

Flervus : I mean like if the pokemon is some sort of first stage "beast pokemon", pokemon with paws and fur and the like.

Yoshi123 : I'd go with something named something like a Feather Ball, cause I LOVE Flying Types(bird keeper say WHOOP)

Mine would be an Unacttration Ball. By catching a Pokemon with this ball, it decreases the rate to find another one by 50% This would be useful in Diamond/Pearl for that daily quest at Solaceon Town in case you haven't caught the target Pokemon yet.

A Cooler Ball. Good a Fire types Pokemon.

I would make a pokeball that has a double layer so it would be harder for the pokemon to get out when you catch it.

I would make either one that...

Has less chance to catch than a pokemon, but permanately raises all stats by like, ten.

OR

One that if fails, raises chance to catch. There may be one like that, but too bad. XD

I Would make a Chaos Ball
The effect is when you catch a pokemon it turns them dark Which increases the pokemon's stats by 50%. Cost 3000

Klepto Ball.
Catches Pokemon from other trainers
Although a fusion ball would be awesome too.

I just had an awesome idea....pokeballs named after the game that they're in.
name : ancient diamond ball
exclusive to pokemon diamond(cannot trade)
item description:has a catch rate of 75% on a certain deity pokemon... and the catch rate for all pokemon is 0% apart from that deity pokemon.
extra note:only works on dialga
the balls top is made of pure diamond and bottom is made of very old rock

name : soulsilver ball
item description:a ball that is very old.legend says only people who have souls as pure as silver are able to use this ball....
extra note:will only work on lugia the catch rate is 75%for lugia and 0%for all other pokemon
top of ball is made of pure silver and the bottom of unbreakable glass with water inside