Lost Isle Calling You need to be pretty intentional about putting Lost Isle Calling into your deck
Any time a Cat attacks on your behalf, you can also pay three mana (1 colorless, one green, one white) to give it Trample and +X/+X for the rest of the turn

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The six mana for a 4/4 creature is very steep and may not be curve efficient, but you get another instant or sorcery spell back from the graveyard
While new Pokmon cards might not carry the same high value as vintage ones, limited editions, secret rares, and special releases (like Shining Fates or Hidden Fates ) can still be worth money, especially in good condition