Stomp on the ground Moving clears a small area of non-cursed surfaces after they interact with you.
The idea would be to create a "trail" after the first character moves through a surface. Would not work with levitate/spread your wings, and the "trail" would be roughly the size of a player character. Could also be used to separate surfaces that touch each other to have more control over surface interaction for melee characters. Could come with a negative that either makes you take more damage from said surfaces or something, along with only working on fire/poison instead of working on water/blood etc. (Also probably wont work in any iteration for Lava/Source surfaces, or clouds for that matter)
Spell Sword Physical melee attacks deals additional elemental damage based on the oldest elemental status effect the target is afflicted with, this damage scales with intelligence (and level?).
I always felt like the battlemage preset could use something that made it a bit more interesting and not make splitting your stats feel too awful. This way you can get a bonus that you can kind of control with yourself or your allies - and since some status effects like frozen reduces water resistance, It would synergize with itself. But also it creates this strategy of using elemental spells before physical attacks on enemies like undead that bleed poison to make sure you don't heal them with said attacks, It could also be a negative against enemies with innate burning that heals through burning or similar things. This also makes battle mages have an additional source of magical damage on attacks other than whatever element the weapons happen to have. This is just the idea - I'm not sure what numbers these attacks would deal.