Cheapest priced copy (Dominaria United Commander): $3.49 at Card Kingdom, near mint, their price list as of .
Xyris, the Writhing Storm 
Legendary Creature — Snake Leviathan · 3/5 · Mythic · Commander 2020 · #18
Flying
Whenever an opponent draws a card except the first one they draw in each of their draw steps, create a 1/1 green Snake creature token.
Whenever Xyris deals combat damage to a player, you and that player each draw that many cards.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $1.49 to $39.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2020 | 18 | Mythic | $4.99 | $1.49 |
| Dominaria United Commander | 175 | Mythic | $3.49 | — |
| Year of the Snake 2025 | 1 | Mythic | — | $39.99Out of stock |
| The List | C20-18 | Mythic | — | — |
3 rulings from Wizards of the Coast
- 17 April 2020If a spell or ability causes an opponent to put cards into their hand without specifically using the word "draw," it's not a card drawn.
- 17 April 2020If the amount of damage Xyris deals is greater than the number of cards in your library and the number of cards in that player's library, you both lose the game at the same time. It doesn't matter if one of you had more cards in library than the other. If there are no other players left in the game, the game is a draw.
- 17 April 2020If the amount of damage Xyris deals is greater than the number of cards in your library but causes the defending player's life total to become 0 or less, that player loses the game before Xyris's ability causes you to draw cards. If there are no other players left in the game, you win the game.