Hercules, Divine Hero would have fit the Resist theme really well, and theres already a nice cheap Hercules in here, so I guess thats another obvious upgrade
More importantly, this is a great introduction to Ruby/Sapphire's focus on Item cards, which set 7 Legendary cards in Lorcana emphasize through the new Tamatoa and Scrooge McDuck
Smee or Mother Gothel, can take advantage of it
Umaro, Raging Yeti* Straight to you from the World of Ruin in the Revival Trance Commander Deck, Umaro is a beast of a design as a 6/6 for 6 with trample who will either pump your board, shoot something, or wheel you each turn at random
The first is that if he is used to go questing, the player receives 3 Lore points, which is a hefty amount
Disney Lorcana also has a free companion app that can walk you through a few more gameplay steps, as well as a digital Lore counter, which helps simplify keeping track of each other's points.