sukuna could have like a second evolution where you need to do allat of quests with him then he would turn into his blop form
when sukuna turn into blopkuna he'll be an item in your inventory when you click use you'll be able to pick his vessel sukun vessel could be any units in game BUT the higher the rarity the lower the chance to turn that unit into sukuna's vessel and you get only 3 chances if u fail all 3 you loose sukuna and u'll have to do the quest all over again
what does it do?
turning a unit into sukuna vessel make the unit have sukuna marks in his face/body and they'll praticaly be sukuna but with the shrine ability
if the vessel is a bleed/burn sukuna will be a bleed/burn too
if the unit has like a Special ability then sukuna will also have it but 2x weaker
Note: any nuke ability like gilgamesh or saber nuke will fuse with sukuna's shrine
example :
gojo becomes sukuna vessel so sukuna gains gojo domain but insted of stunning for 20s he will stun for 10 second and the ability cd would double
Example 2 :
if gilgamesh ( a unit with a nuke ) becomes sukuna's vessel then sukuna shrine will give him a 350% dmg buff and will turn into the incomplete shrine similar to the one he used in shinjuku
Summary: sukuna become the unit ( the vessel ) but with sukuna ability and the model changes depending on the vessel