Can she turn invisible too? I'll admit, I'm not too familiar with the different ghost types.
[He knows a bit more about Mimikyu and Gengar, in that he's spent a lot of time around Shiro's Haunter (the Gengar) and Jean's Spookycheeks. And, of course, his own Dhelmise. Phantump, however, is one he has less experience with. And well. Let's be real here, it ain't ocean-dwelling, so while Armin has nothing against it, it's also not high on his list of pokemon to learn about.]
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[He knows a bit more about Mimikyu and Gengar, in that he's spent a lot of time around Shiro's Haunter (the Gengar) and Jean's Spookycheeks. And, of course, his own Dhelmise. Phantump, however, is one he has less experience with. And well. Let's be real here, it ain't ocean-dwelling, so while Armin has nothing against it, it's also not high on his list of pokemon to learn about.]