While seven mana is a lot to ask for to generate five Treasure tokens or to lose three life, Treasure Chest definitely fits the flavor and feel of a D&D Magic set
This can be easily taken advantage of, as the Wandering Emperor can give a creature a +1/+1 counter and first strike, produce a 2/2 Samurai creature token, or exile a tapped creature
For example, you may still want to bring a Standard deck to play for fun between rounds, a trade binder, pen and paper to keep track of life, and even a water bottle
If you pay full price, bouncing two blockers easily opens the door to a good alpha attack or saves you from one
It extends the art into the black border but keeps the blue card border intact which makes it into a frame of sorts