Unable to wear any armor, unless assimilated with the current armor that it is fused with, with the exception of cloak-like equipment

The boggart itself wouldn't be able to move if it didn't have this swirling vortex of wind

if the core is charged by wind, it gains 2d8 temporary hitpoints

Small, thorny vines, intertwined with the armor

a body mainly composed of plants, being held together by a core of wind.

if the plant part of the body touches water, It can be absorbed in order to temporarily increase the strength of the boggart

in order to absorb water roll a 1d20 con save, and if you succeed (roll 11>=) then increase speed by 5 feet, (or 10 feet on nat20), and add 1d4 (1d8 if nat20) to all damage rolls

darkvision up to 60 feet

ebony armor