im new to not just wicca, but multiple pagan religions including wicca (a completley new religion that i "created") i borrow spells, rituals, and deities from multiple cultures, but can that work? for example, can i worship danu and thor at the same time? or aphroditie and tlaloc (aztec god of rain) and will it work out in spells and etc.?
I personally follow the belief that as long as you are respectful of the deities as individuals, you aren't required to only follow deities of a single pantheon and can take deities into your practice from many pantheons.
That being said it is best to bare in mind that if you do follow deities from the same pantheon that are known to have a dislike for one another, not to include them in the same ceremonies.