There are +1 stackable skill scrolls which can be obtained from different monsters in the world. Use these scrolls to increase your characters skill level in the specific skill defined by the scroll. You cannot exceed your skillcap with this scroll. You will also need 1 skill point available in order to add the skill. Players at 99.2 in a skill at a cap of 100 will not be able to use the skill scroll to max out their skill, they must be at 99.0 to be able to add the 1.0 skill point.