actual Geo reactions

So I thought about that, instead of buffing crystallize, why not make new geo reactions from the begining? Give me ur ideas!

Geo+Pyro=magma/lava

deal AOE Pyro damage in a way similar to electro-charged(dot damage), but by keeping the target over an area(lava lake), the lake area increase gradually while applying the reaction

Geo+Electro=magnetize

Magnetized mark will work like electro aura(just like quicken is to dendro aura, or frozen is to cryo aura), but all enemies affected by electro will be attracted toward the magnetized target, once they collide, deal AOE electro damage that shock targets for abit

Geo+Hydro=mire

Deal some geo dmg once triggered, then targets affected by mire will have their animation speed decreased (like Cryo aura) and have their dmg decreased. Animation and dmg decrease depends on elemental mastery

Geo+Cryo still bothers me and I can't think of a name, let alone how the reaction work