Using Legendary Pulse and Rare Candy means youll be able to get Greninja ex onto the field with ease, accessing Aqua Edge, which hits for 100 damage in return for two Energy Tokens
If this card is in your hand: You can send 1 monster that mentions "Fallen of Albaz" from your Extra Deck to the GY
11 rotation, making them feel significantly worse to play in the current meta
Note, that while technically more expensive, buying the four pack of boosters is still more cost effective as you ultimately save on delivery, and that would probably be my recommendation for anyone looking to pick up a few packs without any stress
And then you halve opponents life points
It cannot attack, but if used skillfully, you can instantly turn the tide of battle with a powerful 7 cost Battle Card