The Pokmon TCG knows the value of a Shiny Pokmon to the fanbase, evidenced by the popularity of their sets Shining Legends and Hidden Fates, which feature these species color-variations prominently
First, have Azusa, Lost But Seeking and Ramunap Excavator, and at least three islands out on the battlefield
Individual planar decks should contain at least 10 cards, including no more than 2 phenomenon cards
Poke Gold is another way to unlock more packs by spending 6 Poke Gold to open 1 Booster Pack or 60 Poke Gold to open 10 Booster Packs
Not only that given that your deck is actually smaller than usual you have only so many cards that actually impact something (remember we have 29 lands, Spiral, Uro etc.) you need space for cards that solve certain problems like Elspeth Conquers Death, Shatter the Sky, Narset, Parter of Veils and Dovins Veto and playing 4th Nissa instead of one of those often leads to games where all the cards are kinda clunky and one dimensional