Victini's Ability is called Victory Star and says that once during your turn you may re-flip any coins you flipped during that turn
Probably the best strategy is a Voltron approach, focusing on buffing and beefing up The Destined Warrior as your primary solo attacker
A tiny ding on the back of an Ancestral Recall can be worth a thousand dollars or more depending on the edition and condition of the card
1 Leonardo's Technique Sorcery Taking the top spot for us is Leonardo's Technique, which allows you to return two creatures from your graveyard to the battlefield, provided they cost three mana or less
With the expected value already low and prices likely to tick down a bit more, even if you can get a great deal on boxes and sell the cards as quickly as possible (to maximize your profits before prices drop), it's unlikely that you'll be able to crack enough valuable cards to sell your opens for a profit
This is especially evident when looking at the decks currently considered the game's meta