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But according to bulbapedia, they are technically Pokemon cards

Savior of the Small seems okay, but not only do you need to enable this kor, but you also need good targets for the ability, which isnt actually guaranteed if youre trying to make sure your creatures survive combat as opposed to trading off

Ephemerate | Illustration by Bastien L

I also know that Aspiring Spike has a Mono Black deck with these cards, as well

Since Supporters have a wide variety of powerful abilities, Tapu Lele lets you make surprising plays when your opponent least expects it

You can also use cards like Eternal Witness and Timeless Witness in this slot as well