Cheapest priced copy (Innistrad: Double Feature): $0.35 at Card Kingdom, near mint, their price list as of .
Twinblade Geist // Twinblade Invocation 
Creature — Spirit Warrior // Enchantment — Aura · 1/1 · Uncommon · Innistrad: Crimson Vow · #40
Double strike
Disturb {2}{W} (You may cast this card from your graveyard transformed for its disturb cost.)
Enchant creature
Enchanted creature has double strike.
If Twinblade Invocation would be put into a graveyard from anywhere, exile it instead.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.35 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 307 | Uncommon | $0.35 | $2.49 |
| Innistrad Remastered | 47 | Uncommon | $0.35 | $0.49 |
| Innistrad Remastered | 452 | Uncommon | $0.35 | $0.49 |
| Innistrad: Crimson Vow | 40 | Uncommon | $0.35 | $0.49 |