http://puu.sh/47rGk.jpg
It's baaaaaaaacwait I was only barely here for this and I don't think anyone was here for this at all so yeah explainstuffs while I hear Mewkats mew in the background constantly.
1) http://puu.sh/47rGk.jpg
This guy sells the base hoods (at 3*) and a material that is used in further upgrading these things. There's a swordie hood with ASI Low, a Gunner Hood with ASI Low, and a bomber hood with CTR Low. They are Shadow/Normal with a high Freeze resist but negative Shock and Curse resists.
2) http://puu.sh/47sH3.jpg
The alchemy machine for upgrading the hoods. At 5*, all three hoods gain a gear-relevant Damage Bonus Low.
Now you need Ancient Pages to make these (buying the hood and getting the materials required to upgrade). How do you get them? Beating up Kats. But not just any Kat...
(While we wait for pics (http://images.wikia.com/leagueoflegends/images/0/09/XinZhao_Select.ogg), MOBA characters discuss arenas (http://hydra-images.cursecdn.com/dota2.gamepedia.com/4/40/Cent_respawn_03.mp3)) Welp needed a Keep but A Black Kat (http://puu.sh/47v1v.jpg) that can curse and summon curse zombies. There's also a prestige mission for them. In general, you want to look for Undead arenas (T1 and T2 Onyx Lion for instance), Candlestick Keeps (they're the pawn levels), Dark Cities, or a Scarlet Fortress for a high concentration of Kats. The black kats can also drop a book, but when that happens the event will be streamed because you take it to the Conjuring Mewkat
to spawn a boss
.