So when the live stream revealed the new Christmas cards to be added, fans noticed in the art work of Air Grove's card you can spot Rudolf's hair in front of a Christmas tree near the right side edge. Didn't take long for the fan artists to start drawing Rudolf dressing up as a Christmas tree.

Turns out they were absolutely correct

So, does this make her a Tree-ple Crown Uma?

Well Rudolf wants to be in a x-mas theme event so she comes tree-fold.