Hi. I'm level 63 magic, 43 hp, and 31 defence. I want to defensively cast at castle wars but I'm unsure of what spells I should be using. My net worth is about 16m. I wear infinity with a magic book and master wand so I have fairy high offensive magic stats. Would blood rune spells or death rune spells be worth it when chaos runes are only 50 gp each?