Inverse scramble with premove:
L
2x2x3:
B2 D' F R2 B D
Switch to normal scramble with premoves:
D' B' R2 F' D B2
All but 4 corners:
L2 U2 L F' U' F2 U
Correction:
D' B' R2 F' * D B2
Insert at *:
F' D B2 D' + F D B2 D'
Insert at +:
U F D F' U' F D' F'