You can spend your mana on whatever interaction you need to survive or gain advantages
Each of these add card flow to the brew
2 Wyll, Blade Of Frontiers The Roll Is Mightier Than The Sword Theres a lot to like about Wyll, Blade of Frontiers, particularly in a dice-based deck
Rosa's Encouragement is useful, and features a Pikachu sundae on it, so it ticks a lot of the same boxes as some similar cards in past sets: "You can use this card only if you have more prize cards remaining than your opponent
Team Galactic Grunt The evolutions of Glameow (Purugly, Colorless type), Stunky (Skuntank, Darkness type), and Croagunk (Toxocroak, Darkness type) are all handy cards that offer some quirky battle mechanism to tick off your opponent: Purugly has a 3 Energy, 60 DMG move called Interrupt which not only makes your opponent reveal their Hand but also lets you discard any of the revealed cards and shuffle them into their deck