OLL 13
Knight move shapes; comes up 1 in 54 solves.
Algorithms
F U R U2 R' U' R U R' F'reads as F U · Ne · U' · J-TriggerF U R U' R2 F' R U R U' R'reads as F U R U' · Axe (reverse) · Righty (reverse)r U' r' U' r U r' F' U Fy2 f R U R2 U' R' U R U' f'reads as y2 f R U R2 U' · Insert (inverse) · U' f'