He's lurking outside someone's window, about to kill that wine-drinking fellow behind the window
Part of a cycle that features the almost-as-broken Gaea's Cradle and somehow the hilariously unbroken Shivan Gorge, Tolarian Academy taps to make a mana for each artifact you control, which led to decks that would dump their entire hand of cheap artifacts, make a ton of mana by tapping and maybe untapping Tolarian Academy, and then use big card-draw spells like Windfall and Stroke of Genius to refill before eventually milling the opponent out with Stroke of Genius, potentially all on Turn 1

Card Name Cid, Timeless Artificer Mana Cost Type Legendary Creature Human Artificer Rarity Uncommon rules Text Artifact creatures and Heroes you control get +1/+1 for each Artificer you control and each Artificer card in your graveyard.A deck can have any number of cards named Cid, Timeless Artificer.Cycling ( , Discard this card: Draw a card.) P/T Set Number 417 Language Franais Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (6/6/2025) The second ability of Cid, Timeless Artificer lets you ignore the "four-of" rule in constructed play
They tend to end up being the most valuable in the cycle more often than not