(if this is were to be real, we would be so dumb.)
the required materials are: 1 dimensional orb, 1 dark red pen, 1 pound of lava, 2 pounds of water, 3 pounds of iron, 4 pens of the different elements (water, fire, air and life, found in their temples), and 5 people sacrificed. to get the hardest material: the dimensional orb, you must find it from the sky biome. witch is the end, that we need the dimensional pen for. maybe we can find a way to get it another way. but how?