[Twan]

Without bless, your best unit is the skratti mage, used as a thug in werewolf form, with magical items (ie : vine shield, a magical weapon, hydra skin or other light armor, amulet of antimagic, remaining slot for a ring of water breathing), buffing himself with quicken self and supported by one of your s mages casting body ethearal and luck.

Be aware to shapechange the skrati into werewolf before giving him gear, and never transform him again. Shapeshifting he would lose all his items but miscellanous ones.

As skratis have water magic, you shouldn't have problem to enter water with thugs and mages. Then once you control some seas you can recruit some aquatic chaff if you need to complete your forces.