Whoops
This legendary dragon and ice type and this fish that turns into an octopus.
KyuRemoraid
This vulture pokemon and this swole ultra beast
MandiBuzzwole
Despite having a bug in its name, this gen 9 paradox mon is not a bug type but this gen 4 bug is.
Iron Mothim
Good thing it's faster because this Pokemon lost it's immunity to this mon's supereffective STAB.
GenGarchomp
This dual type flying mon is an honorary poison type and this dual type flying mon is the prey of Tinkaton somehow.
GlisCorviknight
Two normal flying birds, the first from half of gen 5, the second from gen 6.
RufFletchling
This rotund gen 9 electric type mon and this forgettable gen 8 electric dog.
BelliBoltund
This fighting type little cup GOAT and this mon that evolves into a popular online game.
MienFoongus
This legendary mon would be scared of this fan favourite gen 3 mon if it wasn't for their new form and move.
ZyGardevoir
This very bug weak mon with a very unique evolutionary method and this middle stage starter thats very grass weak.
MalaMarshtomp
A gen 1 bird and gen 7 bird, both unevolved.
SpeaRowlette
Despite having a related word in it's name this gen 9 mon is terrified of flying types such as this gen 3 first stage mon.
Slither Wingull
This gen 5 version of the gen 1 hyper beam spammer and this electric loving water type mon.
BouffaLanturn
Two poison type mons both with Gigantamax.
GenGarbador
This bipedal fire starter and this bipedal fire mon are both little guys.
ChimCharcadet
This gen 9 split evolution of a convergent pokemon has had some VGC success unlike this mon who's signature move is straight up banned in VGC.
SinistChatot
This starter is rather round and would make this pokemon even more dizzy.
CheSpinda
While both of these mons can be fire type their other variants aren't, the first mon through item, the second through region.
OgerPonyta
The held evolutionary item of this mon and many a competetive game elicits this mon.
GliGarganacl
While both of these gen 9 mons have seen VGC viability, this first one OHKOs the second one with no investment needed.
MiraiDondozo
This gen 3 middle stage mon would be terrified of this paradox mon originally gen 3.
LaIron Hands
These shell-smashing turtle mons can hit each other supereffectively with STAB.
TurtonaTorterra
Ash caught this gen 2 mon in the gen 3 season which is odd but to be fair this starter mon isn't even out yet.
AiPombon
Quad weak to ice and quad weak to ice.
GliGarchomp
Both of these mons would make good house pet, the first a fire immune dog, the second being a plain old normal type.
DachsBuneary
(Bunnelby technically fits but it would probably dig holes everywhere making it not as good.)