Corrupted elements and fusions are separate systems. One changes an element you already own. The other combines two elements into a new kit that starts at mastery 1.
Corrupted elements
A mid-2026 element page says there are 23 corrupted variants, that they need Evil Amulets and a specific NPC, and that immortalizing one costs 1,000 Raidium at the Elemental God NPC. The same page says to budget about ten raid clears before you lock a corruption. Raid entry items are not listed here.
Evil Amulets drop from Jungle Blood Moon cursed mobs. A November 19, 2024 update video said Sus Vampire's corrupted chance was raised in Update 8. It did not print the new percent.
Use the Raidium calculator for the 1,000 cost. Put the number of immortalizes you plan and the Raidium you hold. The result is only the Raidium gap.
Fusion rules that were actually shown
A March 5, 2026 video shows a fusion station in the raid area.
- The station is labeled fusions and takes two elements.
- The two elements had to be the same variant.
- Mythic and limited elements were refused.
- The result started at mastery 1, so previous mastery on the ingredients did not carry over in that demonstration.
- The video also says a fusion can keep both kits or only one.
A mid-2026 element page says fusions combine elements up to Legendary rarity. That matches the video's refusal of Mythics. It does not name every legal pair. Do not fuse the only element that can clear your current dungeon.
Advantage damage
The same element page says a counter deals 1.5x damage. The only pairs it names are Water over Fire and Fire over Nature. An Elemental Blade from the Old Man NPC in Jungle is said to amplify advantage damage for weapon hybrid builds. The rest of the chart was not printed, so it is not reconstructed here. The October 2026 ranking adds a few matchups in the element entries, and those are labeled as that ranking's claims.