Physically resistant Catarina armor and an inconceivable amount of offensive damage with high hp and stamina is a hard to beat mix
Right hand: Raw Smelter Hammer +10 (DLC) or other great hammer, Heavy crossbow+10
Left Hand: Havel's Greatsheild, Optional pyromancy flame
Catarina armor at any level (the higher the better)
Life ring +2 or +3 (DLC)
Ring of Giants +2
Royal Soldier's Ring +2
Third Dragon Ring or Southern Ritual ring
None but the build can handle pyromancy.
Pyromancy is not recommended.
Block often but not all the time
Be confident like Siegmeyer
When fighting casters be careful, the Catarina armor isn't that resistant to magic but Havel's shield should manage. Still finish them quick.