What if the Checker sorted by type? Like, say my Serperior had a mono-Grass Moveset. I go to the Checker and choose the Grass Type, then click "Calculate". Instead of getting a bunch of names, I get various types, like the Fire Type. I get Pokemon's names, like Charmander, under the types. That way, I can see both what types threaten my Pokemon, and how many of each type. I think it would help people new to Pokemon, who can't tell the type of a Pokemon by looking at its name.