Cheapest priced copy (Modern Horizons 2): $0.49 at Card Kingdom, near mint, their price list as of .
Yusri, Fortune's Flame 
Legendary Creature — Efreet · 2/3 · Rare · Modern Horizons 2 · #218
Flying
Whenever Yusri attacks, choose a number between 1 and 5. Flip that many coins. For each flip you win, draw a card. For each flip you lose, Yusri deals 2 damage to you. If you won five flips this way, you may cast spells from your hand this turn without paying their mana costs.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $0.49 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 2 | 218 | Rare | $0.49 | $0.49 |
| Modern Horizons 2 | 468 | Rare | $0.59 | $1.99 |
| Modern Horizons 2 | 492 | Rare | — | $0.69 |
| The List | MH2-218 | Rare | $0.49 | — |
| Modern Horizons 2 Promos | 218s | Rare | — | $0.79 |
2 rulings from Wizards of the Coast
- 18 June 2021If an effect allows you to cast a spell with {X} in its cost without paying its mana cost, you must choose 0 for the value of X.
- 18 June 2021When you cast a spell without paying its mana cost, you may still pay additional costs. If any additional costs are required, you must pay them.