Re: Luke skywalker wont lv up past lv4

You can play him as long as you want, his lvl won't rise. The lvl is only made up by the starcards you have for that specific character, and what rarity they are. So you need to craft additional starcards for luke to increase his lvl to get the ability to upgrade the rarity of those starcards to further increase luke's lvl and so on.