Lightning Prisms are one of the many resources you will need for character ascension in Genshin Impact. They are needed to ascend Beidou, Keqing, Lisa, Razor, and Zingiu, and they could be required for other characters, so you will need a lot of them.
To find them, you will need to take out the Electro Hypostatsis boss. You can easily track these down using the Adventurer Handbook. Set the pages to Mondstadt then open the Bosses tab. Scroll down until you come to the Electro Hypostasis boss. Click on it and it will mark the current location that the boss will spawn on your map. You can then go there and fight it, and when it dies it should drop a Lightning Prism for you. Keep in mind that you will need to have 40 Original Resin to claim your rewards from boss fights.
You can also farm the Electro Hypostasis boss repeatedly by using this method. Just open the Adventurer’s Handbook, click on the boss, then go to the new location, although it will level up and become more powerful each time.
The possible rewards for this boss are below:
- 200 Adventure Rank
- Companionship XP
- Vajrada Amethyst Sliver
- Vajrada Amethyst Fragment
- Vajrada Amethyst Chunk
- Vajrada Amethyst Gemstone
- Lightning Prism
- Instructor (artifact)
- Legacy (artifact)
- Prayers for Wisdom (artifact)
- Curative (artifact)
- Gladiator’s Finale (artifact)
- Wanderer’s Troupe (artifact)
This is a pretty tough fight, and you will be able to do the most damage when the core is exposed. You will need to do your best to kite any incoming damage from the boss’ assorted ranged attacks, and it can be a good idea to use ranged characters like Amber or Venti who can use aimed charaged attacks against it.