In addition to the gorgeous Terapagos ex Secret Illustration Rare card, theres also the Bulbasaur and Squirtle Illustration Rare cards, which complete the thematic triptych of Kanto Starter Pokemon in cozy spots that was started way back in the Obsidian Flames set
You can mix and match and choose which you like to play the most, but I like to focus on cards that help with card advantage, and more importantly, cards that help with equip costs
In terms of synergies, we have a few very basic possibilities
Their scarcity, striking designs, and collector demand make them some of the most expensive and highly desired cards in the collection
I think each of them turned out pretty well
Another great option is Outpost Siege