From: CrystalKing5426 | #003Most of them have such restricted use that it pointless.
Let's look at them, shall we?
Level Ball: This is actually better than the Nest Ball, since the catch rate goes up if you use a high-level Pokémon.
Lure Ball: This can be used on Dratini and Dragonair, who aren't Water-types. If it was included in B/W/B2/W2, it could've also been used on Dragonite and Stunfisk. I will admit, though, that it is outclassed by the Dive Ball (but that can be remedied by increasing the Lure Ball's catch rate).
Friend Ball: It is a lot like the Luxury Ball, but it's still useful.
Moon Ball: It has very limited usage, but that's because stone evolutions are far too rare.
Heavy Ball: This one is terrific. There are quite a few Pokémon that the Heavy Ball works great on.
Fast Ball: HG/SS already made this one have less restricted usage.
Love Ball: Here's an easy fix: Make it so that the bonus doesn't depend on the Pokémon's species.
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