ACE SPEC cards are visually intriguing on their own, featuring a hot pink border and unique holofoil pattern
Since The Sibsig Ceremony destroys your creatures that enter, giving you a 2/2 Zombie in exchange, once you get a second Myr Retriever you can just loop them until you have enough Zombies in play to sweep the board
If you really want to go all in, Colossus Hammer is an amusing addition, but it does require either a massive mana investment or an effect such as Magnetic Theft to make work
Food is one of the weaker artifact tokens, so granting the food ability and type is only significant if you have a recipe to win with food
If you want to buy boosters, and plan on buying more than a couple, I would recommend buying a booster box or splitting one with a friend
However, I dont think this Cactuar card is good