The sixteenth card is a Kuriboh from ZEXAL, Kuriphoton. This one is a costly shield, discarding it and 2000 LP to stop any other damage from happening for the turn. It can be regained if you discard another photon monster, so if you run those and have a way to make back the life points this could actually be a great card to use, but without healing cards you have at most three turns of stalling with this card, and you won’t have much life left when it ends. Of course if your opponent has more than 2000 atk coming at you then using this is obviously a great idea. Honestly despite the LP cost it probably is a good card to run. I’m pretty sure you can gain life fast enough to do it indefinitely, though I’m not sure about doing that and having the photon monsters to get Kuriphoton back from the graveyard.