>>546457265
There's a surprising amount of mobs in the game that exist but no one would know they exist since they only appear as a sprite, but lack a portrait.
I think there's actually three Arius mobs, I forget what the third type looks like

There are technically three valkyie mobs but barely anyone remembers
There are at least two types of hot spring mobs

It turns out that giving those characters a portrait makes them more popular.