If that wasnt there, they could move the Winter set up all they wanted. And thats technically true, but thats missing the point
If youre keen on making a rat typal deck, whether in Commander or another format, heres a look at the best rat cards in Magic
Ian Malcolm, ChaoticianIan Malcolm, Chaotician tips his toe into the chaos pool, giving everyone access to every one else's cards one at a time, and only if someone draws more than one card per turn, though if you stuff your Ian Malcolm deck with cards like Dictate of KruphixDictate of Kruphix, Howling MineHowling Mine, and Temple BellTemple Bell, you can reliably grow the pile of extra spells you can cast
However, if I destroy all of them, I want to aim to attack after that, so there may not be much difference