Infernal Beacon

I played the latest snapshot 21w07a and I think grimstone caves are too dark, torches and glowstone cant light them and prevent spawning mobs. That means players can't work safely there.  We need something, that emits much more light, like 35 blocks away. My idea is "infernal beacon" - made from 1 nether star 4 amethyst shards and 4 cooper bars on crafting table. It will emit light 100 blocks away, the light will make undead, closer than 25 blocks away burn similarly to sunlight. This block can be placed everywhere and requires iron pickaxe to break. This beacon is very bright and will place you blindness debuff for 10 seconds if you look directly at it. Infernal beacon is too expensive to place it everywhere, so it is best to take it when you are done with the work. If you have one you will be able to build safely during the night or explore caves without wasting time and resources to clean out all the monsters.