[Radek]

It shouldn't happen that you have to start your XP again. Reset Adventures places your characters at the beginning of the game, takes away quest items (not all of them), clears your role history and voids your guild membership and ranking but it does not affect abilities already reached by your chracters.

Therefore, the characters will keep their XP, character levels, skill levels, all traits, spells, HP, and mana points. They will also keep their inventories (except for certain quest items).

Yes, it's a way of making your characters strong - and you don't need to kill innocent bystanders. Pass the Crypt and you get about 60 000 XP (with the Crusade trait it's about 100 000 XP). Reset Adventures and do it again ...
Reset Adventures has anoter "feature". Because it preserves inventories, you can inherit valuable items from one game run to another. For example, once you gain good weapons, you can Reset Adventures, create a new party, and give it the weapons gained in the preceding game. Now, you can delete the old party. Only one thing: don't forget that every character has its own bank account. If you delete a character with money in the bank, the money is lost. Give the money to another character first.