shiny litten pokemon card Cards Exclusive promo Pokemon single card Litten (SM-P Promo 259) -

Being able to deal with both creatures and Planeswalkers is kinda relevant, because it was for a long time nearly impossible to deal with Teferi, Hero of Dominaria or even a 5+ loyalty Teferi, Time Raveler

You can obtain the Drampa (3-Diamonds rarity) card by opening Celestial Guardians: Solgaleo from Celestial Guardians set

Kami of the Crescent Moon does better in a multicolor 99, probably

His abilities make him an essential card for complex maneuvers

However, picking up a few individual Pokmon packs has its advantages too

This can include cards that arent otherwise in a set or format, with a few examples of this in the gallery above being Ponder, Stormfront Pegasus, and Tropical Island (none of which are collectible in Historic Horizons on their own)