Builder Bird is a Legends of Idleon NPC: quest reward, 1 quest.

Builder Bird | Idleon Toolbox

Builder Bird

Coins

Give this to the bird in town to unlock the portal to World 2! You can come back to World 1 whenever you want, don't worry.

Desert_Topaz

Hold down to gain EXP in the skill that's displayed in the corner of your screen. If you're in a town, you will gain EXP in the town skill. The amount of EXP you get is based on your skill's Lv.

Small_Experience_Balloon

Hold down on this item to refund all your Star Talent Points! Well, except for the Star tab points, there's a different potion for... no wait, this IS the potion for that!

Star_Talent_Reset_Potion

Blunder_Hills

Defeat the Boss at the end of World 1 to retrieve the gem and open the portal to WORLD 2!!