I may have found further relevant material:
Entropy Curse Weapon Grade - YS Pg 296
26 shifts is obviously super high.
So it's Athletics vs 26!!! So when Deadly Luck is compelled as per this example.. the result is stress and consequences? Perhaps You've got +6 Athletics, Sure Footed Aspect and Nobody gonna Keep me down! For couple of invokes...
Whats that Mean? Does mean the target, when it slips in the shower, has to assign 12 stress/consequences worth? (Athletics skill, +4 from Fudge Dice Maximum, +4 invoked aspects)
I think I'm confusing myself even more. From what I see with Thaumaturgy, you just oppose the assigned complexity - and you wont need the prep if complexity is <= lore. So is the following not plausible:
Complexity 8 Thaumaturgy Spell "Gut-ya" (For a Wizard with Lore
Target takes stress = 8 - (Endurance +4)
Probably not the same efficient but I'm just curious from a mechanics perspective.
EDIT:
I believe I've figured it out after reading the example on Paranet Page 257. The example cites someone trying to use Thaumaturgy to cause a severe (6 point consequence). To do so, they are assuming the target has Discipline +1, 3 mental stress boxes/track, and then causing the 6 point consequence. 10 complexity total.
So I just wanted an indiscriminate "mental attack" that does 4 stress, I would simply just need Complexity of (4 + whatever I think their discipline skill is).
Assuming my lore meets/exceed complexity, AND I know entropic-effects with Evocation's speed and methods, I wouldn't need to draw a circle with chalk or trace something or what not first.