Ah, the age-old dilemma of keeping cats away from the Christmas tree. While I cannot guarantee that my magic will keep them away entirely, I can offer you some advice that may help.
First, try placing a few strategically-placed tinsel strings on the bottom branches of the tree. Cats are often deterred by the noise of the tinsel when they try to climb the tree.
Second, use a cat repellant spray around the base of the tree. This can help deter them from even approaching the tree.
Finally, make sure to keep your cat occupied with plenty of toys and playtime, so they won't have