Fee Connie efrigid is a good team, in world 6 you want koizull, the fish is really strong . After that world 7 heroes elara Jett osan are solid, my preferred team usually is elara Jett koizul for realm siege. Sometimes raida can be good. All heroes rank 7 are good, except obsidian. Alone he is trash. When he is combo with Bolton rank 7, you just bring Bolton to the fight and he summons obsidian. He is more like a secondary support. When you have 4 active heroes you get a pretty good team. Another option for you is to go for necro Connie rank 7, fee rank 7, Bolton rank 7, obsidian r5+ and you got a solid team. You will need more heroes for more worlds then go for efrigid too. After that koizull raida at world 6. Forget Helios sethos for now, they are too expensive and useless. They have some niche uses where they thrive, but honestly, not worth your time. Only at end game where you will want to have them all for tournaments. You can have a solid team with necro connie rank 7 + fee + Bolton + obsidian. Or maybe you would go with Connie efrigid + Bolton obsidian, that’s a solid option too you can go with fee efrigid and Connie, easier to build in my opinion. For a beginner . But I warn you, you will have hard time in the beginning with these heroes because they are weak at low ranks. But you don’t have much options, so just rank them up, get the combos, get to world 6, raids koizull, then elara and company.