This deck is way too slow to use competitively, but takes advantage of a quirk of the AI - if you have one creature with a higher defense than the highest AI attack strength, it generally speaking won’t attack you. As a result, as long as you can get a Portal out on turn 3 and a buffed Dino out by turn 4, you’re generally left alone to develop the deck until you can just plow through all opposition. Since it’s a deck with very little duplication you will occasionally gets screwed by a bad opener, but it’s just FUN once it gets going. If you’re going to grind Gauntlet anyway, why not have fun doing it?