Pokémon - Rotom? In MY Pokédex!?

…it's more likely than you think.

These things are spoiler tagged incase people want to see the source themselves – peoples reactions differ depending on what they see since my face just beamed upon seeing a ROTOM IN A POKEDEX, unlike if I just saw it on an image I would've said "Wait, Rotom's in your pokedex now?" proceeded to see the trailer and have less interest. Makes sense doesn't it?