Magic

Magic is present in Renereach, but is not particularly common by any means. A large major city, such as, for example, Renn or Moudeida, may only have 3 to 5 casters of any kind in it at one time.
All magic is assumed by functionally all of Renereach to come from the 10 gods, just accessed in different forms. For example, clerics access it through their worship, but wizards through their study of the god's power and the way it interacts with the world. Sorcerers are either assumed to be chosen from birth to have magical power, or to be descendents of one of the Archdragons. Druids are often considered to have recieved power from one of the more natural gods (such as Lutiei or Yashei) in exchange for caring for and working in their domain.
Warlocks are, then, particularly unique in Renereach in that they are the only ones who definitely get their power from another source, and are almost universally hated and feared across the world. Most warlocks will not admit to being one, and the vast majority of the population would not be able to identify the source of their power anyway. It is, for some reason, not possible to be a warlock of one of the 10 gods - at least, nobody has ever made such a deal.
Clerics and druids are the most commonly found type of caster.
Due to the few casters present in the world, magical items are particularly rare - at least ones from after 0pc. There are somewhat more magical relics of the Precursors out there, and they are often one of the only things that survive in a ruin. But the issue with those is finding them, and they often go for a very high price and are coveted by organisations interested in Precursor relics. Potions are, opposingly, fairly readily available due to the popularity of alchemy.
In terms of public perception of magic, it can vary. Earlier in Renereach's modern history, magic was feared, largely due to people not fully understanding it, and most people believing that the Cataclysm was somehow caused by magic. Some places with a more old-fashioned culture still have inklings of this opinion. However, with the spread of the 10 gods religions, this opinion has made a large switch due to the positive outlook on the gods and the assumption that magic comes from them. Nowadays, magic is more of a spectacle of awe. It still tends to make people nervous, especially forms of magic that aren't directly clearly religious like wizardry. It is less hated than previously, but use of it will still make someone stand out.