Where can you find a catalyst to cast magic?

[SubZero89]

Im just into undead parish & i still cnt find this tool to use magic.

[Schobbo]

you cant find it early in the game, but you can buy it, if you go from firelink down to new londo and down the stairs to the blacksmith guy there he should sell some or griggs after you rescued him

[randomguy666]

You can get one for free, along with a set of Sorcerer's clothes from Griggs of Vinheim after rescuing him from lower Undead Burg. If memory serves, there is a body in a barrel that contains the items - either that, or he gives them to you, can't remember exactly now, but i know that's where you get one for free.

[Suporex]

Actually I did not have problem finding one, but I did not noticed where can you upgrade one, as it is not available for me through weapon modification upgrade

[Schobbo]

you cant upgrade catalysts, theres a few different ones with special effects but none of them can be upgraded, you can only forge one with gwyndolyns soul but i wouldnt recommended that, it makes spells scale with faith if you use it ^^