Bahamut.Baconwrap said:
»For anyone doing Mage-meta. I'm not a FFRK math wiz but I compared SoS+Cannister Shot vs SoS+Focus. I ran this calculator with 528MAG against U+ Seph. I even tried adjusting her MAG but I got the same results. Valefor/Alexander were the abilities.
SoS+CS
SoS+Focus
You did something wrong, and from the looks of it, is that you calculated canister shot to be -50% instead of 25%. U+ all have resistances to breaks(-50% resistance).
Casting Valefor(4.8 x2)at 528 magic with Lulu(focus) against Seph U+, brings the magic to 634 against 2064 resistance. That means each cast of Valfor(not hit, total dmg) is going to be 8878.
Casting valefor at 528 magic with canister shot on seph U+ brings his resistance to 1548. The damage from Valefor will be 7590 per cast(not hit, total dmg).
TL;DR : LuLu Focus > Canister til you are hitting magic soft cap(700s, think 760 gl and 1056 in JP.