i got some cursed bone by farming at cruma 2, lvl 47 NEC now, still farming with Blaze, also at lvl 46 u will have corpse burst. it's a rlly high damage aoe skill but need a corpse. u got plenty corpse when go for AOE farming, also i'm using summoning corrupted man to farming with me, he can use life stealth, can make some damage though it small but if u can kill a monster in 2 hits, it's better than 3 hits ( 47-48 adn for bssd ). Death spike i only used for pk, other wise i use vamp claw and have a recharger to go with.