I feel I need help I tried to fight a root guardian in the sewer but I got defeated easily I'm rather high in level around 400 or so but I'm not sure how to go in getting the exp I need to be stronger as the Bandit boss can kill me with little problem I'd use the Itowashi/katana but not sure how well it would go so can I maybe get ideas on how to get lots of exp when you're high level? Also could I maybe get an idea where all the weapons are at I only know of ones from base game like the pile driver I bought the milk jug from the NPC who sells it but I wouldn't be surprised if there's ones I don't even know of since when Digitalfur adds new weapons he never says where to obtain them.
Have you looked a bit in the Ability tab that is right next to the normal Level Up tab? Because most of said abilities are usually god sends for defeating stronger enemies. If also you've never gone out of the town I'd suggest to do so, since there's the fruit tree to get permanent stat buffs, as well as there being, outside the second wall, of the most useful companions (in my opinion) since it comes with the ability to make you grow bigger as the battle goes on. For the weapons the ones I do use the most are the "broken sword"(that you get at game start) since it gives more xp, the "broken essence of growth"(which I believe you get the most in the fake dungeon(go straight from the entrance to the town) and the cathedral-like dungeon(the one on the far left of the map), and the size sword(which you can get by killing some of the enemies that hide inside the bushes.
And if you ever need more help, buy some growth multipliers and some size potions, they usually do help out a ton)
I know about the ability tab I just have trouble getting the large amount of exp I need in my stats to sacrifice so I can get the ones that require it how does a growth multiplier help? I've never used them as the text for them doesn't give me much to go on as I said I'm using the Bandit boss to level as he gives the most exp but killing him is hard since he's big he can hit me with his bat easy. I do know of the broken essence but never understood how it worked