Maybe it promotes some sort of multi-creature wildlife strategy, but theres a ceiling to how good this could ever be
At the base level, youve got Common cards, marked with a simple circle, and Uncommon cards, shown with a diamond
If you are lucky enough to open a textured foil, you just pulled one of the most valuable cards, and even the base version has a decent price if you don't get the fancy art treatment in your pack
Venusaur's ability, Sunny Bloom , means that every time until the end of your turn (after attacking), you can use this perk where you can draw cards until you have 4 in your hand, which can practically change your game dynamics by having a wider range of card options for a next turn, if you have spent all your resources during the turn before the attack and your hand is less than 4 cards
We do this as gamers who want certain cards for as cheap as possible while maximizing the value were getting