Karn is a character from the Magic: The Gathering trading card game, known for his unique abilities and lore. He is a Planeswalker, a powerful being capable of traveling between different worlds, and is often associated with the color colorless mana. Karn's story involves themes of creation, destruction, and the struggle against evil forces. Originally created as a golem by the artificer Urza, Karn has played a significant role in various storylines within the Magic: The Gathering universe. He is known for his quest to protect the multiverse and has been involved in major conflicts, including the Phyrexian invasion. His character embodies the balance between technology and magic.