You almost certainly need to start by setting a defense that is weaker than your best possible. Because your defense can probably win fights that your offense couldn’t.
I recommend feeding heroes with 1* and 2* heroes of the same color, since they level 20% faster that way.
I would work on these heroes right now:
- Li Xiu
Get them up to 3/50 or 3/60. As they get there, we can offer more advice. Once Jahanghir hits 3/50, though, definitely finish Boldtusk to 3/60.
Boldtusk should be the healer you take on every raid right now, until Melendor and Rigard are higher level.
You don’t have enough heroes to bring 3 of any color just yet, which is a very common strategy. But here are my recommendations:
Against a yellow tank, bring Tiburtus-Boril-Khagan-Hel-Boldtusk also. Swap Rigard for Khagan once Rigard is 2/50 or higher.
Against a green tank, Tiburtus-Boril-Khagan-Hel-Boldtusk. Swap Jahanghir for Boril once he’s ready. I would avoid Kashhrek tanks, though, since you’ll struggle to kill them.
Against a blue tank, you’re really going to struggle. If it’s NOT Boril, you can try Tiburtus-Boril-Kashhrek-Hel-Boldtusk. Swap Melendor for Boldtusk once Melendor is ready, and then you can go after Boril tanks.
Against a purple tank, you’re also really going to struggle. I’d reroll until Li Xiu is higher level.
Against a red tank, I would likewise reroll until Sonya is higher level.