[Gems] Item - Raybreaker (Patreon)

You're a wizard in a dark cavern and the undead are beginning to overwhelm your allies. You clench your fist and a ball of orange fire start to swirl around it. You bring up the prism you found, and trusting in its magical aura, you push the fireball through the crystal. In an instant, it splits into a million colors of energy - burning acid, freezing cold, arcing lightning - and the multicolored ball bursts.

This spellcasting focus realizes the concept of spell chromaticism (like chromatic orb or spray). Like a crystal prism, you too can split your spells into different energies or even split it amongst multiple targets.