Since Gale wants you to be playing as many instants and sorceries as possible, you'll want to get the most out of those instants and sorceries by casting creatures that trigger whenever you cast an instant or sorcery
0: Virtually unplayable in every scenario, and you should never put these cards in your main deck
Hellkite Tyrant Whenever a card has the text "you win the game" on it, you know it's either going to be unplayable or extremely scary
Enchanting Tales Associated Sets: Enchanting Tales was another bonus sheet, and I find the cards vibrant and playful despite not having too many distinct visual flourishes
These borderless cards are all either Gearhulks or Gods and are all mythic rare, which makes them even more valuable
Once you make endless tokens, cards like Hildibrand Manderville, Intangible Virtue, Invasion of Tolvada, and Akroma's Will help push you over the finish line