If you're playing on a small map, 1v2, 2v2, or 1v1, grab Deleb and don't hesitate! The most important thing for her is machines; if you max out the Ballista, victory is yours. Overall, she's a useful unit! But if you're playing on a large map, don't even think about taking her; instead, take Grok, develop the "Call of Urgash" skill, and victory will be in your pocket! Regarding Warriors, it depends on who you're playing against. If it's against Dark Elves, keep the Imps, as you never know what might happen! First, immediately transform the Dogs into Cerberuses; otherwise, they're useless, but as Cerberuses, they can cause some serious damage! Don't rush to build Devils at the beginning; first, get the upgraded Scubas, then the Cave Lords! Oh, and don't forget about Nightmares; you can develop them before the Devils! THAT'S IT.