rainbow trainer pokemon cards Sword & Shield Silver Tempest Secret Rare Worker #209 (Secret) Attach a basic Energy from your discard pile to 1 of your Pokemon Rainbow Rare Arezu Full Art

Furthermore, The Pokmon Company revealed a few more cards on the sly

With all sorts of instant spells and creatures with flash, Alela could swarm the board with tokens very quickly

3/4 Hazagan, the Stormbright 2URW Legendary Creature: Human Wizard (Rare) As long as you control an adventuring party, creatures you control have, whenever this creature attacks, it deals damage equal to its power to target player. 1/7 Out of the Dungeon 2B Sorcery (Common) Return from your graveyard up to one warrior, one wizard, and one rogue to your hand

Of course, its various utility against other cards such as planeswalkers is also a very welcome alternative option