Egg Capsule is a Legends of Idleon monster: 9 drops.

Egg Capsule | Idleon Toolbox

Egg_Capsule

Hold down to add these gems to your account. You can then spend them in the Gem Shop!

Hold down to open for a random reward! Or, hold down for a LONG time to open them faster... yea, dreams do come true

Hold down to summon a mini boss or a green mushroom. It's a 50 50 shot which one you get!

Drag onto any Armor to apply. Success Chance; 30% Uses up 1 slots only if Successful

Drag onto any Tool to apply. Success Chance; 30% Uses up 1 slots only if Successful

Drag onto any Weapon to apply. Success Chance; 25% Uses up 1 slots only if Successful