Honorable Mentions Though very powerful humans, these two cards are Alchemy humans that only see play in MTG Arena formats like Brawl and Historic/Timeless
Set: Duskmourn: House of Horror Market Price: $6.32 Whether in competitive sideboards or as part of the 99 in Commander decks, Untimely Malfunction works (ironically) as a flexible tool that can fix nearly any situation a red mage might find themselves in
Essence Scatter is also more commonly played than Negate, especially after sideboarding
A lot of players have differing opinions on Nazgl being viable in competitive play
These are often cards that give you immediate card advantage when you cast them, and you get even more benefits as the game goes on
Vintage Japanese cards, promotional cards from special events, and modern chase cards like Special Art Rares can also command impressive values