All this is available in one NPC called Yolanda that you can find in every town. (it has other functions such as warehouse, symbol maker, gatekeeper, augument, change subclass)
Buffer: all buffs, including pet buffs, resistances… Duration 2 hours.
Shop: up to B grade, normal enchants, misc items…
Event shop: with event medals from tvt, ctf, korean tvt, death match. You can buy Blessed scrolls, bogs, top LS, Soul Crystals (11, 12, 23), buff books….