You may cast creature spells with power 4 or greater from the top of your library
One thing I want you to note, if you love buying Collector Boosters: These last three slots have some rough math
Youd have to be crazy to print that with no downsides, but red has you covered with the trifecta of Final Fortune, Last Chance, and Warrior's Oath, which are functionally the same card (though Last Chance has the superior art with that borderless reprint in Dominaria Remastered )
The goal is to spread small amounts of damage around on your opponent's side of the board and take advantage of characters that become more powerful when the opponent has damaged characters in play
Sacred Noble Knight of King Artorigus and Maugis do not have once-per-turn restrictions, so they can be looped
Doubling Season triggers and creates a second +1/+1 counter