Feats

Multi-deadlock - You can fight an additional enemy before suffering penalties (+1) (Requires 13 dex)

Improved multi-deadlock - You can fight an additional enemy before suffering penalties (+1) (Requires Multi-deadlock, 15 Dex.)

Heroic Multi-deadlock - You can fight two additional enemies before suffering penalties (T+2) (Requires Improved multi-deadlock, 20 dex.)