Prismarine Beams

The Emitter (middle) emits a guardian beam that travels as many blocks as the strength of the signal strength it's receiving. It pierces through glass and prisms, but stops when it hits a block. It deals magic damage over time Crafted with 6 prismarine crystals, 1 prism, 1 diamond, and 1 redstone, The Prism (left) redirects beams in a different direction and resets their length to the max possible (15). You can right click on each side to open and close it. Crafted with 8 prismarine crystals, and 1 glass. The Receiver (right) takes the beam in the front , and converts the remaining length into a redstone signal out the back. Crafted with 1 prism, 2 redstone, and 2 prismarine crystals.