I believe this will happen, but nothing is certain
When matched up together, these will form a memorable moment from the books
If Three Tree Scribe leaves the battlefield without dying at the same time one or more other creatures you control leave the battlefield without dying, its ability will still trigger once for each of those creatures, including itself
There are so many amazing Disney characters and worlds to bring into Disney Lorcana, and the game has proven itself a hit
You just have to sit there as you lose the game while not being able to interact with the attacking creature(s) in any way
If you're already including the Luck Bobblehead, you should consider including the Intelligence Bobblehead and the Perception Bobblehead, as well