Light Phoenix

This would be a giant phoenix that would spawn in a dimension called the light dimension, which was an idea I came up with (https://feedback.minecraft.net/hc/en-us/community/posts/360052076852-Light-Dimension) It would be the boss of this dimension and it spawns only if you make a summoning platform, made with glowstone in a three layered pyramid fashion (fire on top), as long as you kill it. It shoots beams of light and fire balls at you and it also dives down to you and sits in front of you for 5 seconds then flies back in the sky, shooting at you. It drops 2-5 light orbs, 0-1 phoenix feathers, and 60 levels, but it only drops the levels the first time it is killed. The light orbs can be used to make a reverse potion (https://feedback.minecraft.net/hc/en-us/community/posts/360051850751-potion-of-reverse) and the phoenix feather can be used for fuel and smelts 200 items, or you can use it with an emerald block and any stripped wood (not logs) around them, to make a totem of undying. Or you can make a special staff out of it using it on top of two blaze rods, that doesn't have durability, and summons red fire where ever you use it (using your place block or interact button).