Rivermark, Wavewind Traitor

At the beginning of each opponent's upkeep,
that player may pay 2 life. If they do, you and
that player each draw a card. You lose 1 life.
Whenever a land enters the battlefield under an opponent's control, that player may pay 2 life. If
they do, you and that player each create a
Treasure token. You lose 1 life.
"Never, ever, ever, ever trust the pirate's code."
—Alora, Merry Thief