Cheapest priced copy (Kaldheim): $0.99 at Card Kingdom, near mint, their price list as of .
Niko Aris 
Legendary Planeswalker — Niko · Mythic · Kaldheim · #289
When Niko Aris enters, create X Shard tokens. (They're enchantments with "{2}, Sacrifice this token: Scry 1, then draw a card.")
+1: Up to one target creature you control can't be blocked this turn. Whenever that creature deals damage this turn, return it to its owner's hand.
−1: Niko Aris deals 2 damage to target tapped creature for each card you've drawn this turn.
−1: Create a Shard token.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.99 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kaldheim | 225 | Mythic | $0.99 | $0.99 |
| Kaldheim | 289 | Mythic | $0.99 | $1.99 |
| Kaldheim Promos | 225p | Mythic | $0.99 | $2.99 |
| Kaldheim Promos | 225s | Mythic | — | $2.49 |
4 rulings from Wizards of the Coast
- 5 February 2021Niko deals all the damage for their second ability at the same time. For example, if you've drawn two cards this turn, Niko will deal 4 damage to the target tapped creature; they won't deal 2 damage, then deal 2 more damage.
- 5 February 2021Shard is a new predefined token, similar to Food and Treasure. A Shard token is a colorless enchantment with "{2}, Sacrifice this enchantment: Scry 1, then draw a card." Shard is a new enchantment subtype.
- 5 February 2021If Niko Aris enters the battlefield without being cast, they were cast for a cost other than their mana cost, or if X was chosen to be 0, the enters-the-battlefield ability won't create any Shard tokens.
- 5 February 2021The delayed triggered ability created by Niko's first loyalty ability will trigger whenever the target creature deals any damage that turn, not just combat damage.