In my attempts to find more spells, I've taken to assuming any large blank spot on my map means I haven't looked hard enough for a door or a cave or a toilet that has a boss inside. This has led me on this incredible journey of the Weeping Peninsula today...including a "Greater Enemy Felled" notice for a boss that didn't seem all that hard.
BUT the true revelation came when by chance I (Weeping Peninsula/Stormveil Castle spoilers) acquired a Warhawk summon from a ghost in a chair. Now don't get me wrong, all the summons I've collected thus far seem worthy. The one I had been solely using was my Wandering Nobles, aka my Lads. You might be thinking hey, those guys aren't very optimal, but I happen to find them very charming, especially when they go WHOA!! every time something aggros. But a Hawk? I met them in Stormveil, and their resume is QUITE impressive.
(Limgrave spoilers) My journey continued when I somehow wound my way back into the tutorial area, and I now happened to have the Stonesword Keys needed to unlock the area there. And uh yes that's an area for sure. That was lots of fun. I REALLY RECOMMEND IT. Anyway, the area brought me to a boss, the lovely Ulcerated Tree Root. And you know, my Lads were really not coming through for me on that fella. So I thought to myself, hey, my Lads are +5, but I did also upgrade the Hawk to +5. So let's try the Hawk!
The Hawk KILLED the Ulcerated Tree Root while I was lying on my ass after I got hit by some undulation or other of its sinuous body. I got 15k runes. I think that's the most runes I've ever had in the game. Friendship ended with my Lads, now Hawk is my new best friend. Though the Root gave me ashes of a whole ass knight, so stay tuned...