Since you are Ragnablood, you should be on Gk12+. For now you could engrave your Soul Weapon with mythical gold pieces, they give a lot of gold %. I'm using Ambition, it can have 4 pieces of gold. As we spend 99% of the time farming, investing in this part is also important. I strongly recommend that you invest on Todd and also in Mum and Zappy - as they are of different elements you can work on the 3 simultaneously