A tower targeting skill that locks onto a single victim and never stops firing until one of them is paste.
During the City Defense System activation in Larracos, Carl received the warning that a tower had targeted him using its Inexorable skill and would not stop firing on him until one of them was paste. A tiny crosshairs symbol appeared in his vision to mark the lock-on.
The Gale Strike Tower that locked him pursued him across the top level of Larracos, over the border into Shanty Town, and all the way to the Nest Tower — smashing through intervening buildings and digging a trench under his hiding position. Carl notes the lock persists until the target is out of range or dead; invisibility potions don't defeat it and smoke helps only nominally.
The mechanic that turns a single defensive tower into a relentless personal pursuer.