One other thing that just occurred to me about multitype is that it completely fucks up prebattle planning. Even if you know what type the multityper is once it switches in, you don't figure this out in team preview. In this generation, a lot of the battle planning occurs before the first mon is sent into play; you figure out which Pokemon won't be too useful this round or what opposing pokes you can check with what Pokemon and stuff in the similar vein. When an opponent has a poke packing multitype, they could have one of any pokes, and depending on the type. Meanwhile while your wondering which one of your six pokes could best handle the damn multityper your opponent is able to break apart your team accurately and will have a huge competitive edge when the battle actually starts. Also in every match there become points where you need to sack something because of a misplay. Generally you can get away with sacking your least useful Pokemon but if your opponent has a multitype poke you don't know what your least useful poke is. This makes it. Very easy to accidentally sacrifice your check to the multityper, costing you a match. This unpredictability makes me now believe that multitype actually belongs in S tier even though I'm the one who originally placed it in B tier. For that reason, for the first time in this process, I am nominating multitype for S Tier.