I'm curious about the large number of changes made in the UU Ranks. Arcanine, Durant, Galvantula, Krook, Lilligant, Milotic, P-Z, Rotom-F, and Walrein were all demoted to C-Rank, Crobat was demoted to A, and Slowking and Togekiss were both promoted (I guess S-Rank Kiss is reasonable). I wonder what's the reasoning behind all of them?