Actually, many heroes can start in the swamp map, not just Tazar. Bron, Vistan, Broghild, someone might even want to try Dragon or Alkin, and Korback is also a possibility (scouting and attacking). Perhaps a larger tournament could be organized here to determine how these heroes compare. When I first started playing on the forum, I always started with Alkin for some reason... On water maps, Voy might be popular...
Added 1 minute ago
There's also Gervulf with a cannon.