
You have no maximum hand size.
At the beginning of your upkeep, if you have exactly thirteen cards in your hand, you win the game.
{3}{U}: Draw a card.
Triskaidekaphile has 10 printings, first in Innistrad: Midnight Hunt (2021). EDHREC ranks it #1,479 among Commander cards. It appears most in Ms. Bumbleflower decks (14,812 on EDHREC). 2 public decks on TCG run it. It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.