Triskaidekaphile
Creature — Human Wizard
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.
: Draw a card.
Slawomir Maniak
Magic Online Promos (PRM)
• #93922Rulings
Triskaidekaphile's triggered ability will trigger only if you have exactly thirteen cards in your hand as your upkeep starts. If you have fewer cards in your hand, you won't be able to draw cards during your upkeep in time to cause the ability to trigger.
(wotc • 2021-09-24)
Rulings
Triskaidekaphile's triggered ability will trigger only if you have exactly thirteen cards in your hand as your upkeep starts. If you have fewer cards in your hand, you won't be able to draw cards during your upkeep in time to cause the ability to trigger.
(wotc • 2021-09-24)