These cards are pretty interesting to me because of their Symbol ability, which increases the damage done by basic Fire, Water and Lightning Pokmon (respectively) by 10
You might want to Brainstorm in response to put your key combo piece on top so that they cannot discard it
Within this category, collectors can find entries for cards that were never meant for general retail distribution
Knowing when to plot Slickshot and when to hard cast it will separate the best mono-red players from the rest
You can have some more if youre lucky enough to pull any of the shiny Kanto Pokmon cards in Celestial Guardians
What you could potentially do is to fill you graveyard, Delve away the cards you dont need in the matchup, and shuffle the rest back into your library with [scryfall]Cranial Archive[/scryfall], which is also a cantrip, so youre only paying mana for the effect