Magical Musketeer Calamity is a LIGHT Fiend monster and now joins The Lost Art Promotion
"The most popular theory for why faded cards exist is that the magenta color ran low and produced cards which lacked appropriate saturation levels." These cards command a premium in the secondary market as they are harder to find, grade, and are sometimes rejected completely
This card, Obliterate, would benefit a deck that aims to control the board and disrupt the opponent's strategy by wiping out all artifacts, creatures, and lands
In fact, buying them straight from the artist is a cool way to support their work
#116 Horsea
If the card appears in a set using a different illustration (e.g., Luminous Bonds in Guilds of Ravnica ), it will have a separate card style you can acquire