Dathfire Rammus (Insane Damage + Tank AF)
Yeah, I know a bunch of you might think: WHY DAFAK WOULD U USE DEATHFIRE ON RAMMUS
Well here is the answer: W applies spell effects, and his passive converts armor into extra AD, AD which shall by used by Deathfire in order to scale, and adds more DPS to his ult. ** Rune priority:** 1 Magic Pen 2 Scaling Armor (at least 18) 3 Flat Armor 4 Flat Magic Resist (8 min)
Build:
Optional:
or even a 
Explanation of weird items:
applies on W and ult plus the magic pen.
more sticky, synergy with Liandry, good if the enemies are running away from you too easily.
a lot of raw damage
allows some crazy interactions with Thronmail and your W, as they apply full spellvamp if the damage is high you will be healing yourself by a good amount, therefore this means you will be receiving less damage, also he active is insanely good for engaging, for finishing targets and for a sneaky ks.