Pincer Grip requires:
Lv 1 Nothing
Lv 2 1 Mitra, 2 P
Lv 3 2 Mitra, 3 P, 1 S
Talon Clutch requires
Lv 1 2 Mitra, 3 P, 2 S
Lv 2 3 Mitra, 3 P, 2 S, 1 Union Leader without S attribute
Lv 3 4 Mitra, 3 P, 2 S, 1 Union Leader without S attribute
Claw's Grip requires
Lv 1 5 Mitra, 3 P, 3 S, 1 Union Leader without S Attribute
Lv 2 5 Mitra, 4 P, 3 S, 1 Union Leader without S Attribute
Lv 3 5 Mitra, 5 P, 4 S, 1 Union Leader without S Attribute