Weapon Bonding Gem (5e Equipment)

Wondrous item, rare (requires attunement)

This small, roughly eye sized gemstone glows with a swirling, soft light. When held up to a weapon it begins to hum in an erratic, but orderly rhythm.

During a short or long rest, you may set this gemstone to a weapon of your choice. This creates a bond between you and your weapon. The weapon gains the following benefits.

• The weapon becomes magical
• You can instantaneously summon the weapon to your hand as a bonus action, unless you don't have a free hand
• Weapon attacks made with the weapon score a critical hit on a roll of 19 or 20

If the gemstone is removed from the weapon, it loses all of these properties, and must be bonded again to regain them.