I played col2 for a long tym and I can't evolve my hero as many people do so... I have abyss demon,iron clad,toxic Shawman,renee ven, and a great sage i can't get enough resources to evolve them so... I have extra shards of dijinn also i wanna ask if dijinn can take place of any of my above hero as i have enough resources to unlock his enlightenment
It all really comes down to what your favourite mode is. If you want to focus on a certain gamemode or a playstyle/combination of heroes of your liking, you should try to combine those together in battle while using shards and other resources for hero aids that can empower said combinations in really just any way until you've found a new resource to replace the obsolete ones.
I like healing and so my team mainly exists of Ambrosia, Abyss Demon, Landslide and Skull Mage. All really due to their ability to soak up and heal back their damage received. The final hero is usually situational.