If your goal is to flip in 612 months, the OP09 alt-art cluster is more liquid and easier to sell into a competitive secondary market
Some players found the yellow cards overpowered compared to the other colors
Card draw is often the biggest hindrance in Lorcana games, so a chance to gain more cards and also have a solid quester on the table is a great combo
Grim Lavamancer was the prototype for Deathrite Shaman and we all know that Deathrite Shaman was so good that it ended up getting banned in both Modern and Legacy
Phasing Combos There are some great cards with phasing and while there arent many combos that involve phasing, there are a couple of interesting interactions for you to check out: One of the best white instants ever printed, Teferi's Protection turns these into one-sided spells: Armageddon, Apocalypse, Balance, Farewell, Wrath of God, or really any board wipe that removes all permanents
Use varied Pokemon instead, because Brittany uses an "Etcetera" deck (with many different kinds of Pokemon)