Though I do find the concept interesting for most classes, would that not further encourage Bloodmages to pursue Sanguine-fueled physical strategies as opposed to magic based strategies?
Barring making a specific exemption for the Bloodmage (like Warlord CYDSTEPP), I don't think this can be avoided. The devs have made clear by ignoring our earlier comments that they have no intention of returning BLUDTUPOWA to its former power, so I doubt anything that directly buffs a spellcaster would fly.
Bloodmage is another issue entirely, but let's not bite off more than we can chew by opening that discussion here.
It could increase the damage on your next offensive spell, then.
Actually, the way I worded it this would
work with PISORF, which is not the intent but probably fine anyways. I don't think making it synergize with BURNDAYRAZ would be a good idea, since the straw that broke the camel's back with regards to the B2P nerf was BURNDAYRAZ spammers...
I would say something like a reduction in something for consecutive spell use.
The problem is that it's not too difficult to knock out a piece of popcorn to counter-act this, and Mystera-worshipping Assassins (already the best dedicated spellcasters in the game) are basically unaffected.