A new biome that is similar to the mooshroom island except in the nether!! A withered biome in the middle of massive lava lakes, only accessible by strider or elytra. The biome would be withered itself and consist of wither trees (which work like wither roses but on a more intense scale) and wither roses, as well as this biome would be where wither skeletons would spawn in higher quantity than a fortress.
As of right now the strider doesn’t really have a purpose more of just a limited use, so a place being a new withered biome only accessible by strider would be a really interesting addition.
The addition of said biome would also increase the want/need to venture far out into the nether for the increased spawn rates of wither skeletons and to obtain wither roses/wither trees.
The only way to make a wither rose is by a wither killing a mob, so therefore the only way to obtain them safely in say hardcore mode is by trapping a wither inside of a gateway portal (portal breaking is also something Developers dont want in the game, the evidence for this is, it was fixed and people found a new way to break them) so there’s no way to safely obtain wither roses other than portal breaking so a biome that is dangerous to get to that spawns the wither roses would be very useful.