I'm answering...
I'm not just writing this for no reason... and I chose a hero named Veishan, who initially has Luck and Soldier's Luck; under these conditions, getting Spell Power is, of course, an impossible task.
You need to play not only as Necromancers, but if you're going to write something, write about what you know. Spell Power WORKS with enhanced spells...
And to end the argument, I sat down and played a map. Unfortunately, on the 5th level in 3 castles of the Shadow League, there was an Armageddon, so the screenshots will be with Ice Bolt.
The first screenshot is a hit with an enhanced Ice Bolt, with Luck and a +50% ice amulet, without the Chaos Magic skill, on the EIGHTH day... the damage was 594.
The second screenshot is, in fact, the 5th week, the same enhanced Ice Bolt, amulet, Luck... the damage is 1782...
The hero's stats are 5-4-13-10, so there's plenty of mana... skills: Chaos Expert, Luck, Spell Power. sub-skills: Soldier's Luck, Spell Power, Secrets of Chaos, Lord of Cold, Mana Regeneration, Secret Knowledge, Shifting Mana....
I hope that after this, the questions "how to deal thousands of damage with spells on the 5th week?" will disappear...
P.S. Unfortunately, I don't have Photoshop right now (to rename the screenshots to .jpg), and the forum doesn't support uploading native screenshots from the fifth game, so I'm uploading them in an archive... oh yes, patch 1.4, I didn't want to launch the add-on, I played the original on the Outlands...
Apparently, Spell Power didn't always work with enhanced spells. At least in the skill wheel 1.2, it said the opposite, and I didn't install 1.3 for a long time (only before the add-on). Thank you for the clarification.
And regarding the 1782 damage, even in that case, you are still idealizing the situation. Your base damage there is (96+12*13)*1.5*1.5*2=1134. And the rest, as I suppose, is elemental damage from 3 native castles.
So, with expert Luck, Chaos, and Spell Power 13, an amulet, and three native castles with a probability of 0.075, you will deal 1782 damage with an Ice Bolt. In this formulation, you are absolutely right.
But if we evaluate the expected value of the damage (I don't know if you are familiar with this concept, so I will explain it as a simple average over a large number of trials), it is approximately equal to 840. The difference is obvious.
