When a skill cube reaches the far right space on the skill track, you have leveled up. Hamtastic!
Until a skill is leveled up, you get no benefit from it.
Once a skill is leveled up, you may make 1 attack in that color once per turn without playing a card.
This ability remains in play unless you are forced to reduce a skill. These skill attacks can be added to attacks made when playing cards.
You cannot increase a skill beyond its maximum.
You cannot decrease a skill below its minimum.