The Rubberdex - #644 Zekrom (Patreon)

 The legendary masks are especially complex additions to the Rubberdex - for one there is only ever one of each one made ever (How else could they be legendary!?), the other is that they tend to have a stronger sentient will that can have ... side effects with those who are worn by them.

In this case Zekrom, the massive show-off, has taken Fory for a ride and given him a particularly enormous, permanently rigid "asset" that'll make him the envy of all other legendaries!

Don't worry, I'm sure he'll get used to it~