They're from the noted Capcom arcade game, Dungeons & Dragons: Shadow Over Mystara, which is a weirdly in-depth brawler that puts a surprising amount of work into adapting the DnD ruleset. George Kamitani of Vanillaware worked on the first of the two Capcom DnD brawlers - Tower of Doom - and you can draw a straight line from these games to Dragon's Crown.

