Cheapest priced copy (Tarkir: Dragonstorm): $7.49 at Card Kingdom, near mint, their price list as of .
Cori-Steel Cutter 
Artifact — Equipment · Rare · Tarkir: Dragonstorm · #343
Equipped creature gets +1/+1 and has trample and haste.
Flurry — Whenever you cast your second spell each turn, create a 1/1 white Monk creature token with prowess. You may attach this Equipment to it. (Whenever you cast a noncreature spell, the token gets +1/+1 until end of turn.)
Equip {1}{R}
Legal inCommanderBrawlModernLegacyVintage
Banned inStandardPioneer
Not legal inPauper
4 printings · $7.49 to $15.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tarkir: Dragonstorm Promos | 103p | Rare | $8.49 | $10.99 |
| Tarkir: Dragonstorm Promos | 103s | Rare | — | $15.99 |
| Tarkir: Dragonstorm | 103 | Rare | $7.49 | $8.99 |
| Tarkir: Dragonstorm | 343 | Rare | $7.99 | $11.99 |
4 rulings from Wizards of the Coast
- 4 April 2025Spells that were cast before a permanent with flurry count. If that permanent was the first spell you cast that turn, the next spell you cast that turn is your second spell.
- 4 April 2025If the triggered ability causes two or more Monks to be created (due to an effect such as that of Doubling Season), you may choose to attach Cori-Steel Cutter to one of them.
- 4 April 2025The Monk token that you create enters the battlefield as a 1/1 creature. Any abilities that trigger when a creature with a certain power enters the battlefield will see the token enter as a 1/1 creature. Static abilities that affect the Monk’s power and toughness may change this.
- 4 April 2025No player may take any actions between the time you create the Monk token and the time you choose whether to attach Cori-Steel Cutter to it.