Updated: Dec 4, 2021
Instead of taking down evil folks, you should spend EXP materials.
To make your characters stronger in Genshin Impact, you must manually level them up.
While characters do acquire EXP by defeating foes, the quantity gained is incredibly low. Instead, utilize EXP material found in Teyvat, such as Wanderer's Advice (for 1,000 EXP), Adventurer's Experience (worth 5,000 EXP), and Hero's Wit (worth 20,000 EXP). In the meantime, killing a monster grants roughly 15 EXP, thus the disparity is huge.
These three EXP ingredients are discovered in treasure chests and are frequently awarded as prizes for completing Domains and quests.
You may also get Adventurer's Experience by activating the Blossom of Revelation Ley Line Outcrops scattered around the map. These blue smoky balls may be seen on your map and spawn in a variety of locations. You may activate them, and they will produce foes for you to defeat. When you finish them, you'll be able to receive a reward of around 13 Adventurer's Experience in return for 20 Resin.
Once you have your resources, you may utilize them by pressing the "level up" button on the character screen. They'll need to be ascended using resources obtained from bosses after they reach key level milestones in order to level up higher.
Keep in mind that employing these items to level up your characters necessitates the use of Mora, Genshin's term for all-purpose currency. Leveling up a large number of characters to high levels consumes a large amount of Mora, but you may get more by completing Blossom of Wealth Ley Line Outcrops, which produce foes for you to vanquish.
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