Unfortunately, you can't stockpile them - in order to buy new GGBs, you first need to open all existing ones. That said, if you leave the shop without buying anything, the GGB will be saved and can be used later.
Your first and foremost priority are the boosters. Since skills and werepyre armors bring your magical weapon damage to melee standard, you'll want the Poelala pet and guest.
Angry Trobble spell, if clicked at the right moment, can give you a bth bonus for several turns which can be used for White Knight / Taladosian / Horo Show / Moglord skills. It's not quickcast, but still rather useful for a 0-Dex build.
Terra- and Blazing Bloodzerker are really good armors that have +20% damage bonus for a blood cost and an ele-locked toggle for increased damage. You can pair them with werepyre blades for a pretty strong nuke using Str/Int, or use with Morningstar Occult Cross for nearly double the regular skill damage.
Bloodmage armors give +50% damage bonus to spells - so you can use them with the werepyre str/int spells. They also have a powerful ele-locked spell, though it uses the normal spell stats.
Presuming you plan to use a magical harm weapon (to take advanateg of poes), you'll want the Voidsplinter staff or sword.
Not necessry, but if you want to take advantage of your high Luck - Dragonguard spells turn your next attack into a guaranteed LS.
Bloodzerker's Blazing and Terra swords are the strongest weapons for their respective elements.
If you use the werepyre's Panic, Taladosian Pendant gives +10 bonus to save.
That's pretty much all I can think of from the top of my head.
< Message edited by Primate Murder -- 8/21/2019 8:24:36 >