Unholy Grotto
Onslaught · 327/350 · Rare
$5.81 Near Mint market price (TCGplayer).
Unholy Grotto is card 327 of 350 in the Onslaught set, released in October 2002. Its rarity is Rare. The artwork is by John Avon. Unholy Grotto has also been printed in 3 other sets, so check the set and number to compare like with like.