Cheapest priced copy (Edge of Eternities): $0.35 at Card Kingdom, near mint, their price list as of .
Hylderblade 
Artifact — Equipment · Uncommon · Edge of Eternities · #106
Equipped creature gets +3/+1.
Void — At the beginning of your end step, if a nonland permanent left the battlefield this turn or a spell was warped this turn, attach this Equipment to target creature you control.
Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities | 106 | Uncommon | $0.35 | $0.49 |