The Triskaidekan Triplets

Whenever you discard a card, The Triskaidekan Triplets deals 1 damage to target player chosen at random.
Whenever a player's life total becomes 13, another target player chooses one—
• Destroy target creature. You lose 2 life.
• You draw two cards and you gain 2 life.
• Discard any number of cards, then draw that many cards.