Cheapest priced copy (Throne of Eldraine): $0.35 at Card Kingdom, near mint, their price list as of .
Syr Faren, the Hengehammer 
Legendary Creature — Human Knight · 2/2 · Uncommon · Throne of Eldraine · #177
Whenever Syr Faren attacks, another target attacking creature gets +X/+X until end of turn, where X is Syr Faren's power.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Throne of Eldraine | 177 | Uncommon | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 4 October 2019If Syr Faren leaves the battlefield before its triggered ability resolves, use its power as it last existed on the battlefield to determine the value of X.
- 4 October 2019The value of X is determined only as Syr Faren's triggered ability resolves. Once that happens, the value of X won't change later in the turn even if Syr Faren's power changes.
- 4 October 2019If Syr Faren's power is negative as its triggered ability resolves, X is considered to be 0.