I do question why it's called "Barrel Dragon" when it's so obviously a dinosaur and NOT a dragon but that's just nitpicky
They can either be Normal or Special Summoned normally, or they can be Summoned via a special procedure called Maximum Summoning
While it's not to the point of being able to move stably, it has reached the minimum line for practical use.Also, if you go second, you get one extra card to draw, so the probability of being able to move is barely 85% .With this probability, it seems safe to assume that the possibility of a hand brick is not very high.Also, I will delve into this in more detail later, but this deck has a first-turn play that is on a different axis than summoning Xyz monsters so I don't really worry about the 75% probability when going first
Of these, "Pendulum Sorcerer" is the most potent as it can search for two "Performapal" monsters every turn, and due to its ability to target itself with its destruction effect, can send itself to the Extra Deck to be Pendulum Summoned later
61a for Android)