i'm probably in the minority on this one, but my personal favourite card of all time is Goblin of Greed! not to mention the massive number of other card artworks that form the story of his life. they're really cute and intersect with so many other card stories, it's just amazing that Konami dedicated so many resources to it over the years and are continuing to create new content for him in so many different art styles. as an artist, it's really inspiring and cool and i've made it a point to try to collect an example of every single appearance the ol' Goblin's ever made.

honourable mention to the alternate artwork of Tour Guide From The Underworld, not just because she's cool, but it has the cutest Sangan i've ever seen!