Bonemass' AoE attack effect is a fx item in Valheim. Its in-game item ID is bonemass_aoe, which you can drop into the console with spawn bonemass_aoe to give yourself one — append a number like spawn bonemass_aoe 50 to spawn a stack. Bonemass's AoE attack effect is the internal poison cloud used by Bonemass in close combat. It is not a player item. The spawn command requires cheats — enable them with devcommands after opening the console.
Spawns one Bonemass' AoE attack effect at your location.
Spawns one Bonemass' AoE attack effect at your location.
Spawns five Bonemass' AoE attack effect at your location.
Spawns twenty Bonemass' AoE attack effect at your location.
Bonemass's AoE attack effect is the internal poison cloud used by Bonemass in close combat. It is not a player item.