-__- the trick is expensive anyway...and if its true you already spent 700 on it I doubt the trick would be useful to you since the trick isn't really a trick, its just something like a superstition (really with amazing accuracy). Chances are your still gonna spend the same amount of cash with or without the trick, since the trick gets less efficient after five or so gacha pieces. and with 700php in the bag I doubt you haven't meet the five-piece milestone yet...or your lying.
tip tho: buy only the bundle packs.... it'll get you the complete lvl60 only with 1.3k (or less...)php without any tricks. I didnt know any gacha tricks before and I never spent morethan 1.3k worth of books (tho I did spent more money since I always load up 500 and then I end up buying cash skills with whatever is left, I rarely spend money on a game and gacha-ing pets I liek is a rare occasion so I kinda go wild oAo)