Stilt owls (which Decidueye is at least partly based on,) were flightless birds.Incineroar should've stayed on all four instead of becoming a pseudo-Fire/Fighting type, this was obviously GF absolutely fucking with us. Should've stayed on all fours and became like a Fire/Electric feline.
I'm genuinely annoyed that Decidueye loses Flying-type without gaining HA Levitate, they've done it with Flygon and Hydreigon to acknowledge that these non-Flying type Pokémon still retain the ability to fly, why couldn't this have been done for Decidueye?
Necrozma looks so cool but pretty much sucks. It's signature move is a slightly better, STAB, Hyper Beam, which is completely unusable competitively. The stats are odd too.
In general a lot of things this generation are slow, I like fast things.