Trainer cards: These provide support to help you draw more cards, boost the strength of your Pokemon cards, disrupt your opponent's strategy, and search your deck for key cards when needed
Explore was a mechanic introduced in the original Ixalan expansion way back in 2017
Hell, you can even just cast it in your main phase to exile an opponents counterspell when youre setting up for a big turn
You will also be able to pick up the exclusive PokemonCenter ETB that contains 11 Booster Packs (compared with the standard 9 in the normal ETB)
Together, they blur the lines between reality and illusion and they form a powerful pair
Preening Champion, Rals Reinforcements, Invasion of Segovia, and See Double are good ways to do this, as they make coloured tokens that can convoke for blue or red mana, rather than cards like Invasion of Kaladesh that makes less-useful colourless tokens