There are some enemy spellcasters in Solasta's OC. Enough for me to have the same thoughts about reaction baiting that you describe. Although, you can probably achieve the same effect by having an expendable summon, or your Rogue to run through the enemies with Dodge activated, bleeding them out of their reactions.

Haven't tried the new campaign yet, people are telling weird things about random encounters, like a party level 4 stumbling upon a Green Dragon and some such.