This comic is part of an ongoing story that might make more sense with full context.
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If you want to read the whole thing in one go, it's easiest on my site.
(These are "newest first", so start at the end and work backwards.)
Throughout October, I'll be drawing a piece of Konsi art every day as a Drawtober challenge. Here's the prompts I'll be using.
You can find the art on Mastodon, Tumblr, Bsky, or Twitter. First two are best.
So it turns out the spell she cast was "Summon Celestial".
Say hello to Zetema: Archangel of Fortune, Tymora's Pit Boss, First Croupier of the Great Wheel.
There were a lot of good guesses for what the spell was going to be - and a great many of those spells were better choices than this one - Spirit Guardians, for example, would probably wipe the fight (although it'd risk killing someone.)
So, if lower level spells might be better here, why is Konsi summoning an angel?
Well... remember that this is a downtime period, not a day of adventuring. On top of that, Konsi spent the morning preparing her spell list for dating. She doesn't have many combat spells prepared at all.
Summon Celestial isn't the most efficient combat spell, but it is versatile - when you can summon a 12ft tall flying angel, you can solve a lot of problems as well as combat - so the spell made the cut.