Serendib Efreet

The original undercosted blue beater, and the card that established the design template Wizards has been rationing ever since: a body that beats the curve in exchange for an upkeep tax that bleeds the controller. Three power and four toughness for three mana was, in 1993, a statline blue had no business owning; flying made it a clock the opponent could not race on the ground. The one damage per upkeep is the structural pressure valve, a self-inflicted Sulfuric Vortex tick that rewrites the math of every aggro mirror and every long game. The lineage is direct: Juzám Djinn does the same trade in black, Phyrexian Negator twists it into a sacrifice clause, Dark Confidant prices the body down and pays the cost in cards instead of life, and modern designs like Baleful Strix and Delver of Secrets descend from the same idea that blue should sometimes get a real creature if something on the card hurts to own it. What makes this one historically load-bearing is that it asked the question first, and answered it in the color that was supposed to be worst at creatures. The drawback has aged into a feature: a deck that wants this card is a deck that plans to end the game before the upkeep triggers add up, and that pressure shapes every list it has ever appeared in.