Wall Scramble
From WikiRaider
Wall Scramble is one of the new moves introduced in Tomb Raider (2013), it returns in Rise of the Tomb Raider and Shadow of the Tomb Raider. When standing in front of a wall that is too high for Lara to jump up, she might still make it, by using wall scramble. Jump towards the wall and when touching it, press jump again to push a little higher. This is basically a double-jump. Walls where wall scramble is possible are often white and scratchy.