I have to admit that Sunfire Cape on Annie is weird, however it was more efficient due Life/Armor than Rylai's honestly.
I ALWAYS build Annie in a tanky way because it always worked better to me as being Full AP. And with her E she is both, tank-like and strong.Vulf wrote:
Annie has always been a tanky mage and still is. You can straight up build her tanky AP items and still melt teams.
RoA
Zhonya's
Rylai's
Abyssal
Late game you will have like 130+ armor and 100ish MR with a little under 3k health with those 4 items.