Wooden Aortic Mass is a Legends of Idleon item: dropped by 1 monster, used in 1 recipe, upgrades 1 bonus. It sits motionless, unbeating, blood not being pumped. It's made of wood, so this doesn't come as a surprise.

Wooden Aortic Mass | Idleon Toolbox

It sits motionless, unbeating, blood not being pumped. It's made of wood, so this doesn't come as a surprise.

Wooden_Aortic_Mass

+{%_Crop_Evolution_chance_for_EVERY_map_you_unlock_in_world_6,_across_all_characters!_Total_bonus:_$