2013-05-20, 07:49 PM
Nope, multiplicative.
Also, depending on which Magnus that is (Reg Magnus has 50% DEF, Hard has 120%), it's inconclusive in proving whether or not 100% Ignore DEF will ignore all DEF, even if it's over 100%. I really don't see why it'd change to subtract the amount of Ignore DEF from the monster's DEF rather than ignoring that amount of the monster's DEF, though, especially since they already reduced the effectiveness of Ignore DEF.
Also, depending on which Magnus that is (Reg Magnus has 50% DEF, Hard has 120%), it's inconclusive in proving whether or not 100% Ignore DEF will ignore all DEF, even if it's over 100%. I really don't see why it'd change to subtract the amount of Ignore DEF from the monster's DEF rather than ignoring that amount of the monster's DEF, though, especially since they already reduced the effectiveness of Ignore DEF.