Furthermore, some cards from Alchemy, a feature specific to Magic Arena also show up in these card slots, albeit rarely
I'm generally OK with running fewer boardwipes than most players, and I prefer to try to win games by killing everyone at once so nobody has to sit out to wait for the game to end
Flare of Fortitude Chief: This card does an amazing job protecting your permanents and your life total, which seems totally reasonable at four mana and absolutely cracked at the low cost of sacrificing a nontoken white creature
Some view it as a powerful finisher, while others only see it as a "win-more" card, effective when you're already ahead
OP09-103-koala counters this perfectly, helping you replenish your hand while simultaneously putting a strong defender on the board, ensuring you can sustain your offense and defense
Since Captain America shrugs off the equip cost of an equipment, you can put whatever artifact you copied with Masterwork of Ingenuity onto Captain America without much difficulty