I went with Ingvar.
On week 1, the opponent had Marbas revealed; on week 2, he switched to Deleb.
Overall, things were going well for the dwarf, except for the lack of regeneration and the fact that no orb was dropping (so the imps quickly drained his mana).
Deleb jumped into the dwarf's adjacent zone on week 4, and they fought in the castle. Ingvar turned out to be stronger (they wanted to build the dwarf external dwelling while defending the castle, but built God knows what instead).
Thanks for the game.