While discussing Moon Girl and Devil Dinosaur, Rasmussen also noted that "whenever an artifact you control enters" triggers appear throughout the Marvel Super Heroes set to represent a superhero or supervillain "inventing" something
There are many and various schools of thought about the best assortment of cards to make a 60-card battle deck, but I shall try to annoy all of them by suggesting at first you think 20:20:20
Good matching then checks the card name, artwork, set logo, language, and the tiny card number line at the bottom left or bottom right
The first is Ill-Tempered Loner, which is a four-mana red 3/3 that you can buff by paying mana, and it deals damage to stuff when it takes damage
Be wary of deals that seem too good to be true, as counterfeit cards are a risk
However, these cantrips never produce card advantage, only selection