Talk:Leona/@comment-5490997-20121021193656/@comment-88.186.19.90-20121024144245

Rylai stacks with the ult slow. Rylai allows you to slow the entire enemy team with W and E. Rylai gives you a massive amount of HP which you scale off of. Rylai gives you 80 AP which is a nice damage addition. Building Rylai is better than a Frozen Mallet in terms of DPS and teamfight utility; while FM gives more HP and a stronger single target slow.

IMO it depends on your situation. If you engage a lot, I would recommend Rylai. If you need to lock down a single target (either because they are fed or because you don't have the CDR to spam spells) FM is the better choice.