Kaijus are fine as long as you have the ability to control the only Toadally Awesome on the field, you'll be in a pretty good spot
You can only activate 1 "Galactic Charity" per turn
Mythical beasts, such as Master Cerberus or Jackal King, are often included because they leverage spell counters, and extra spellbook cards, including Spellbook Magician of Prophecy, will increase your draw rate, which is essential for playing a Pendulum deck
On top of this, its an unwieldy and impractical method of getting your boss monsters on the field, as you will need at the very minimum one whole turn before you can summon anything substantial - and two if youre looking to achieve Kaibas Blue-Eyes White Dragon dreams
Each secret pack also has three stats - power, technical and hold the line - which can broadly help you pick a secret pack that reflects how you want to play: Power refers to attack points and damage capabilities Hold the line references defence points and ways of staying in the fight Technical references the general complexity of the cards in the theme Every secret pack you buy contains eight cards: four from the entire game's card pool, and four from the secret pack