Favorite hero from Dungeon.

But what if you need to go somewhere and eliminate someone, you have limited mana, and the next day they will capture your castle? You need Sinistar.

It's perfect for performing rituals quickly when needed, and it also provides extra mana.

And Kifrah is not bad at the start; those six to nine minotaurs can also be helpful. Plus, the 250 blessed gold you get. You can use that to buy a second hero and create a decent army.