Your hero’s abilities can be divided into two categories: Skills and Talents.
Skills are active abilities that can be used during combat by using mana, fuel or incurring cooldown. Skills can be primary, secondary, or ultimate, each with their own usage and limitations.
Talents are passive abilities that improve your hero’s combat prowess or improve skills.
To upgrade Skills or Talents, you need to collect cards for each respective Skill or Talent. Once you have collected enough cards you can upgrade the Skill or Talent by using coins.