Shieldspire is a Palico Gadget in Monster Hunter World (MHW).
A massive Protector shield used to defend against attacks. It can also be used to provoke monsters, drawing their attention.
How to get Shieldspire
This Palico gadget is obtained by completing the Grimalkyne sidequest in the Wildspire Wastes.
Start the sidequest by tracking down a Grimalkyne in the Wildspire Wastes with your Palico in tow. The Grimalkyne will ask you to find three of its friends, and capture them using the Capture Net. Track them down, capture them, and bring them back to the first Grimalkyne to be rewarded with the Shieldspire Palico Gadget.