V Perm
Diagonal corner swap: Two diagonal corners swap (plus edges); comes up 1 in 18 solves.
Algorithms
R' U R' d' R' F' R2 U' R' U R' F R Freads as R' U R' d' R' F' R2 · ZagZig (reverse) · F R FR' U R' U' y R' F' R2 U' R' U R' F R Freads as ZagZig (inverse) · y R' F' R2 · ZagZig (reverse) · F R FR U' R U R' D R D' R U' D R2 U R2 D' R2reads as ZagZig · R' D R D' R U' D R2 U R2 D' R2