Cheapest priced copy (Commander 2013): $0.49 at Card Kingdom, near mint, their price list as of .
Fell Shepherd 
Creature — Avatar · 8/6 · Rare · Commander 2013 · #78
Whenever this creature deals combat damage to a player, you may return to your hand all creature cards that were put into your graveyard from the battlefield this turn.
{B}, Sacrifice another creature: Target creature gets -2/-2 until end of turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2013 | 78 | Rare | $0.49 | — |
3 rulings from Wizards of the Coast
- 17 October 2013You can choose a creature as the target of the last ability and sacrifice that same creature to activate the ability.
- 17 October 2013Creatures dealt lethal damage at the same time Fell Shepherd deals combat damage to a player will also be returned to your hand from your graveyard. If Fell Shepherd is such a creature (perhaps because it gained trample, attacked a player, and was blocked), it will be one of the creature cards returned to your hand.
- 17 October 2013Creature cards that were put into your graveyard from any zone other than the battlefield, such as a card that was discarded, won’t return to your hand.