Cheapest priced copy (Portal Three Kingdoms): $57.99 at Card Kingdom, near mint, their price list as of .
Guan Yu, Sainted Warrior 
Legendary Creature — Human Soldier Warrior · 3/5 · Rare · Portal Three Kingdoms · #6
Horsemanship (This creature can't be blocked except by creatures with horsemanship.)
When Guan Yu is put into your graveyard from the battlefield, you may shuffle Guan Yu into your library.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $57.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Portal Three Kingdoms | 6 | Rare | $57.99 | — |
3 rulings from Wizards of the Coast
- 1 October 2009If Guan Yu, Sainted Warrior is removed from the graveyard after the ability triggers but before it resolves, it won't get shuffled into your library.
- 1 October 2009Despite the similarities between horsemanship and flying, horsemanship doesn't interact with flying or reach.
- 1 October 2009If a replacement effect has Guan Yu move to a different zone instead of being put into the graveyard, the ability won't trigger at all.