Blunder Hero is a Legends of Idleon item: quest reward.

Blunder Hero | Idleon Toolbox

Blunder_Hero

Equip_the_Blunder_Hero_Trophy,_while_also_having_another_in_your_inventory.

Made up of all the tokens that you collected after completing an NPC's entire questline. DONT SELL THIS ITEM

Proof that you mastered the art of the Mining, Smithing, and Choppin skills. DONT SELL THIS ITEM

Proof that you collected all the coolest and rarest items that Blunder Hills has to offer! DONT SELL THIS ITEM