Arcane Arts and Corvids, part 4 is a manual in The Blood of Dawnwalker.
“Master sorcerers know how to manipulate these unholy birds even further, reaching through the aether directly inside the animals’s minds and stoking their bloodlust until they reach a state of veritable frenzy. Thus primed, the summoned corvids intensify their attacks with merest agitation. Woe to one who finds himself in their cawing midst…”
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Transcribed from DawnwalkerDB.