User blog comment:Kygehn/Support Rantings/@comment-9044052-20131230180545/@comment-5955640-20131230212039

Primary mages that can second as supports do not get buffed or nerf as part of the season four change. Mostly because they main in damage and not utilty. Sona does main in utility and that got buffed as now her power chord does scaling damage and will inflict debuffs which will also scale. To compensate for high utility potential in buying AP items her actual damage spells were made weaker so she won't be blowing people up when she gets AP items.

Annie and Zyra don't come close to having the sort of versatility Sona has as they are just there for CC.