fb03 booster box Dragon Ball Super Numerous new characters have also joined the game DRAGONBALL Fusion World BOOSTER BOX

While it's in play, if a Creature you control with power one or less dies, you may return it to the battlefield at the beginning of the next end step if Shirei is still on the battlefield

That may be true, but understand how very situational that is, and more than likely you are bound to use those monsters as Xyz Material at some point anyway

Scrappy Survivors (Red-Green-White) : Featuring the goodest of boys, Dogmeat, as your commander, this deck focuses on scavenging for tools, Equipment, and allies

Flashback Flashback is a keyword for two static abilities, one working while the card is in the graveyard, and the other while the card is on the stack