Which race would you add to Heroes?

What about the "Fortress" faction? It's just like in Disciples 2! Quite appealing.
Level 1 - Gnolls; Gnoll Archers
Level 2 - Healers; Resurrectors
Level 3 - Dwarves with Axes; Dwarves with Pikes
Level 4 - Mountain Crushers; -----------
Level 5 - Snow Golem; Ice Golem
Level 6 - Giants; Arch-Giants
Level 7 - Snow Dragon; Ice Dragon