Can a multiclass character use either of its spellcasting modifiers for spells?
When character multiclasses into multiple classes that can cast spells, which modifier do you use for casting the spell? Or do you use whichever you prefer?
Say, for an example, someone multiclasses Wizard into Warlock. Does the combination of classes even matter?
Is it the same for exclusive spells too? Like using Eldritch Blast, can you use your intelligence modifier instead of charisma?