This is a very basic and simple mod- its simply adds the Ultimate Ore, a Minecraft Cursed Images meme. The Ultimate Ore is an ore block with a different ore on each side. When broken, with a diamond pick, it drops a Diamond, an Iron Ore, a Gold Ore, and a little Lapis and Redstone. It is less common than Diamond, and spawns in smaller veins between y 11-0.
The video that inspired the Mod: