Yes, magi is a Scrabble word!
...and is worth 7 points in Scrabble, and 9 points in Words with Friends
magi
Noun
1. (New Testament) the sages who visited Jesus and Mary and Joseph shortly after Jesus was born; the Gospel According to Matthew says they were guided by a star and brought gifts of gold and frankincense and myrrh; because there were three gifts it is usually assumed that there were three of them
2. A magician or sorcerer of ancient times
3. A member of the Zoroastrian priesthood of the ancient Persians
What Scrabble words can I make with the letters in magi?
3 Letter Words
2 Letter Words