The Card also allows one Buster Blader card that has not declared an attack to directly attack an opponent if they have no monster under their control at the moment
The pull rates will likely be the same, however
A few local collectors have mentioned not being too big on them and questioned it just as you did here
According to players in community discussions, you should focus on "solo missions, grinding quests, also there are events that pop up every 1-2 weeks with semi consistency." Completing these objectives is one of the most reliable ways to earn Pack Hourglasses, in-game currency, and even more free packs
Airknight Parshath Curse of Vampire D.D
However, the opponent can react to this ability and only put one or two Pokemon on its bench