Darksteel Citadel
Commander 2014 · 290/337 · Uncommon
$1.58 Near Mint market price (TCGplayer).
Darksteel Citadel is card 290 of 337 in the Commander 2014 set, released in November 2014. Its rarity is Uncommon. The artwork is by John Avon. Darksteel Citadel has also been printed in 16 other sets, so check the set and number to compare like with like.