When you received Illuvial with good stat s - its rarity and treasure. When everybody has the same stats on any mode - it is boring and the game will be dead
#Fusing Stage 3 Illuvials
limber shell
grave fractal
When you received Illuvial with good stat s - its rarity and treasure. When ever...
It will be RNG of course so it will still be hard to fuse one. And sooner or later they will still add more illuvials so it will never die as long as everyone are making and doing any progress. It may be a good thing to decrease the over supply of illuvials that is being minted every single time.
vale mica
I can see the appeal, but any feature that would make higher stat illuvials more common is not in the interest of preserving long term value/rarity so I have to vote it down sorry.