DeBuff

[Reece]

No, it's not supposed to be a weakness, if anything it's more like a strength.

Not quite. If it was optional, then it would be a strength. Drawbacks make things more powerful, in the Omniverse. Since inability to be used against certain targets cannot be taken as a legitimate drawback, any moves whose owners choose to remain faithful to the original functionality of, must be weaker than they otherwise could have been, if targeting restrictions were allowed.

Bulbasaur uses razor leaf against Squirtle, although the background canon says that it's more effective against water, it's not in the case of the Omniverse.

In other words, against water-based enemies, its effect has been weakened. That's not a strength, it's a weakness.

Now, overall, it does make moves more viable... but in order to do this, their power-level must be reduced. For example, Rikuo Nura, from the anime Nura: Rise of the Yokai Clan, possesses an exorcist's sword called Nenekirimaru, which can only cut yokai (demons), but is far, far more harmful to them than an ordinary sword. In the Omniverse, however, there would be no difference between that blade and a regular katana (unless other drawbacks such as charge-times for each swing or energy costs were added).

In other words; in order to make something powerful affect everyone equally, it must be weakened.

I'm not saying that this was in any way a poor decision on Omni's part, don't get me wrong; all I'm saying is that it is a weakness.