Cheapest priced copy (March of the Machine: The Aftermath): $9.99 at Card Kingdom, near mint, their price list as of .
Nahiri, Forged in Fury 
Legendary Creature — Kor Artificer · 5/4 · Mythic · March of the Machine: The Aftermath · #171
Affinity for Equipment (This spell costs {1} less to cast for each Equipment you control.)
Whenever an equipped creature you control attacks, exile the top card of your library. You may play that card this turn. You may cast Equipment spells this way without paying their mana costs.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $9.99 to $79.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine: The Aftermath | 36 | Mythic | $9.99 | $10.99 |
| March of the Machine: The Aftermath | 86 | Mythic | $13.99 | $17.99 |
| March of the Machine: The Aftermath | 136 | Mythic | — | — |
| March of the Machine: The Aftermath | 171 | Mythic | $10.99Out of stock | $17.99 |
| March of the Machine: The Aftermath | 215 | Mythic | — | $79.99 |
8 rulings from Wizards of the Coast
- 12 May 2023If you don't play the card, it will remain exiled.
- 12 May 2023An "equipped creature you control" is any creature you control with one or more Equipment attached to it.
- 12 May 2023If you cast an Equipment spell this way, you may choose to pay its mana cost if you want to.
- 12 May 2023Nahiri's last ability will trigger once for each equipped creature you control that attacks, no matter how many Equipment are attached to any of them.
- 12 May 2023Unless an effect allows you to play additional lands that turn, you can play a land card exiled with Nahiri only if you haven't played a land yet that turn.
- 12 May 2023One reason you might want to pay its mana cost is if there's an {X} in its mana cost. If you cast such a spell without paying its mana cost, you must choose 0 as the value of X. (If you pay its mana cost, you may choose the value of X as normal.)
- 12 May 2023You may play the card exiled with Nahiri's ability even if Nahiri or the equipped creature leaves the battlefield or you lose control of them.
- 12 May 2023Playing the exiled card follows the normal rules for playing that card. Unless you're casting an Equipment spell this way, you must pay the spell's costs, and you must follow all applicable timing rules. For example, if the card is a creature card, you can cast that card by paying its mana cost only during your main phase while the stack is empty.