And I even took the time to download a 50 MB manual... the chance of success is 10% for each +1, i.e., with a luck of 3, every third hit will be doubled; I don't know where you got 7% from....
Now, I wrote about different approaches for a reason; in the GAME, it works exactly like this...
Third, solve the problem about the 8th day and 594 damage dealt, but without Chaos magic, i.e., 60+12*SP (according to the manual), SP was around 6, the total is 132; now, the amulet is 198, the arcane is 297, and the luck is 594... draw your conclusions; there are no elemental chains in the log from the spell. Now, I calculated that 1782 damage requires 25 SP (not so unbelievable for a Warlock...), but this surprised me... I loaded the save, and saw that 25 is nowhere close (although it turned out to be higher than 13...), so I don't understand how it's considered an expert opinion... but in PRACTICE, it works exactly as in the screenshots, and the elemental chain is written separately, i.e., the damage may increase by another 10% (but the chance of this is definitely small)...

P.S. In general, we've strayed from the topic with these treatises, and the "evil" moderators might ban us 8))... so let's stop going off-topic... but I repeat, my words are based on the GAME, and yours are based on PAPER... so I'll still claim to be right; if you disagree, write to me in a private message; let's not clutter the thread anymore 8))... But it was very pleasant to argue with a reasonable person. Best regards, Alan.