Ominous Seas is a uncommon Enchantment card from Ikoria: Lair of Behemoths (IKO), collector number 61. Current market price: $1.50 (foil $2.41), TCGplayer market prices via Scryfall.
Whenever you draw a card, put a foreshadow counter on this enchantment. Remove eight foreshadow counters from this enchantment: Create an 8/8 blue Kraken creature token. Cycling {2} ({2}, Discard this card: Draw a card.)