Cheapest priced copy (Secrets of Strixhaven Commander): $0.35 at Card Kingdom, near mint, their price list as of .
Fallen Ideal 
Enchantment — Aura · Uncommon · Time Spiral · #109
Enchant creature
Enchanted creature has flying and "Sacrifice a creature: This creature gets +2/+1 until end of turn."
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
4 printings · $0.35 to $9.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 125 | Uncommon | $0.39 | — |
| The List | C15-125 | Uncommon | $0.49 | — |
| Secrets of Strixhaven Commander | 117 | Uncommon | $0.35 | — |
| Time Spiral | 109 | Uncommon | $0.39 | $9.99 |
One ruling from Wizards of the Coast
- 25 September 2006The creature's controller (not Fallen Ideal's controller) can activate the "sacrifice a creature" ability.