Of course, you can avoid resetting the mine if it's an Olympic system or a best-of-3 format. Shakti must NOT be banned as a starting hero under any circumstances, if only because Dungeon would then be a very difficult faction to play and nobody would pick it — even building the Eyes on 200% is a big problem. But Necromancy should be banned entirely, in my opinion. It might also be worth removing the restrictions on magic, scrolls, and specialists — debatable, of course.