Originally Posted by
Kasierith
Annie support has been a thing for quite some time now.. it's been incorporated into the meta for well before this season began.
Strengths: consistent ranged point and click cc (with easy potential aoe), harass, molten shield (one of the strongest things in her kit that a lot of people overlook)
Weaknesses: Rotation dependent, cc while consistent can take a long time to wind up and is her only means of control, squishy when shield isn't up, not extremely long ranged if flash isn't up, no natural means of directly supporting team outside of items.
Overall, I've found the best build for her with my playstyle isn't straight AP (well, if we're already hard winning, but that doesn't count in terms of a serious build in a competitive game) is actually more tanky with high cc, getting ap items with defensive stats like zhonyas as opposed to rabadons, and even going rylais which allows more control. And getting hp and armor is enormous, especially when facing things like a yi. An annie support can actually solo a full build yi depending on her build.