The most effective starting strategy for the Inferno faction.

Well, to use the explosion ability, you first need to move the demon close to the target and only use the ability on the next turn. The damage is about 30% of the normal damage. Besides, I usually use the abilities of new demons after removing retaliation or to finish off enemies. Also, they are indispensable when attacking archers, especially low-level ones. However, the fact that you have to upgrade so many things really slows down the development of the castle, and that's why you often don't have enough money.