The List

Beast Attack

Create a 4/4 green Beast creature token.
Flashback {2}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Duel Decks: Mind vs. Might

Duel Decks Anthology: Garruk vs. Liliana

Put a 4/4 green Beast creature token onto the battlefield.
Flashback {2}{G}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Duel Decks: Garruk vs. Liliana

Odyssey

Put a 4/4 green Beast creature token into play.
Flashback o2o
Go
Go
G (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)