Every few seconds, the Grappler will grab the troop that is closest to it, and pulls the troop close, dealing minor damage in the process.
Critters will distract the Grappler, so you can use it to avoid large units from being grabbed.
If Critters are not available, the best strategy would be to use smaller units such as Riflemen or Zookas. The loss of a single Rifleman or Zooka is usually immaterial.
The Grappler should be placed in the middle of a bunch of other defenses. As its use is best when grabbing a large unit such as a Tank, place it in range of multiple Cannons or Boom Cannons to eliminate them quickly.
You can also place it in the middle of a group of Flamethrowers to wipe out other units such as Riflemen or Grenadiers quickly.
The troops that it drags every so often can serve as a distraction to the other defenses, so placement of the Grappler has to be carefully considered.
At Mark I, the Grappler consists of a yellow machine with a simple metal pulley in the back and a metal claw with two prongs in the front.
At Mark II, the pulley is wider with red outlines. The claw gains a third prong.
At Mark III, the pulley is made larger. The three-pronged claw in Mark II is replaced by a wide metal claw with red pads. The base of the machine is now made yellow instead of gray, and is reinforced with outriggers.
Grabs an enemy unit and drags it next to the Grappler
Input total Statue bonuses to modify the statistics in the table below accordingly