Talk:Cassiopeia/@comment-3148314-20140830125553/@comment-24057740-20140902113112

You Will always have 5% cdr. You will allways put the points into this mastery. Cassio is no tank or supporter, so you will always skill into offense.

The point about reducing it opens up more buil options. You can go for spellvamp without being punished for, or build a deffensive item with 10% CDR. 25% CDR opens up build options.