Sidar Jafar not only prioritizes attacking, but with its ability you can reanimate powerful Knight cards once it deals combat damage to one of your opponents
Once Lovestruck Beast is attacking, it'll remain attacking even if you no longer control a 1/1 creature
That said, Polygon did reach out to ask whether picking a booster pack matters, with the following response received: "While Pokmon Trading Card Game Pocket draws inspiration from the experience of opening physical Pokmon TCG booster packs, we are unable to share specifics at this time." So, essentially, they are unwilling to confirm or deny whether you're choice matters
It is especially worthwhile when paired with spells that bolster a creature's strength such as Giant Growth which provides +3/+3 to a creature until end of turn, as this buff's value is doubled.
However, they usually have something, whether its Adventurers Impulse, Growing Rites of Itlimoc, Heart of Kiran, Karn, Teferi, Ixalans Binding, Fatal Push, Vraskas Contempt, Blossoming Defense, something
