I'm trying to replicate the spider queens bone in logdotzip's ccmp series. I've gotten pretty far, however I can't finish it. I've gotten up to
/execute ~0 ~0.1 ~0 [player] summon spider and /testfor item.weapon.offhand minecraft:bone
The things I need help with is combining both commands, getting the order of the string of commands right, getting the name of the bone to have to be "Spider Queen's Bone", having no drops come from the spiders, and killing only the spiders spawned by the bone. There may be missing things because I am new to larger commands.