A ground lizard box is an Empty monster box containing a Ground lizard. Making the box will result in the player gaining 14 Monstercrafting xp and releasing it will give 0.6 xp. A House rat box can be created by using a Lizard skin and 13 Monster fragments on a Empty monster box while wearing a Crafting necklace. After releasing the box in a Player-owned house Dungeon, a Ground lizard will appear and attack the player straight away regardless of the players level, so the player must be ready.