Morska, Undersea Sleuth (Display Commander) - Thick Stock (51) [Murders at Karlov Manor Commander]

You have no maximum hand size. At the beginning of your upkeep, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") Whenever you draw your second card each turn, put two +1/+1 counters on Morska.