Honestly TTar is probably falling to ru next and has no reason to be banned from UU. There are now 11 fighting types in the tier, Krookodile, all 3 of the ghosts who fell have a secondary stab that is super effective against ttar, body press skarm, CC lycanroc, and alot of new fairies like klefki that can use it for free setup. There are also mons already in uu who beat ttar that I haven't mentioned and it isn't a reliable answer to indeedee since it is easily worn down by hazards and can't recover at all. The fact that Ttar managed to stay in OU for so long is the real surprise