Mechanical Claw
From WikiRaider
The Mechanical Claw is a trap that appears in Tomb Raider V in the level The Base. It is controlled by a man located inside one of the rooms of the base. When Lara is it's range, the claw will move above her position and come down on our heroine, sometimes killing her with only one blow. The best way to avoid this is to just keep moving and look for shelter.