I have 120 Parry and 120 Bushido
Using a 1 handed weapon (leafblade) and you cannot use a shield (if you do you won't parry)
Leaves 1 hand open for Greater Strength, Greater Agility, Greater Healing
50% Enhanced potions
150 Hit Points
Make sure you honor it before you start attacking. If it already blessed itself and you can't honor it because it's not full health, then wait till it is or pick another target. Honoring it is a must.
Skills I use during this encounter:
Armor Ignore, Feint
Keep Enemy of One up 100% of the time
Use evasion when you're at around 60% health, back off and use confidence if you get lower than that.
If you're not using evasion or confidence, keep Counter-Attack up 100% of the time.
I have 0 DCI on my suit which lets me parry more often, thus counter attacking more often, resulting in more damage done and more life leeched.
My suit is also refined to all 75s for extra damage reduction.
Necro will leech enough from hitting with Armor Ignore (should hit for over 100)
I'm in a full studded suit (except for helmet, mace and shields) so I do not need Stamina Leech on my weapon. If I get below 50% health and I need to back off, I'll top my stamina off with Divine Fury. I have to make a correction from what I said earlier. They are weakest to Physical damage (not fire.) Using a physical damage weapon you will not need to use consecrate weapon.
Weapon:
Mana Leech (max)
Life Leech (max)
Swing Speed Increase (max)
Damage Increase (as much needed to get 100% from your suit)
Hit Lower Attack (whatever space is left over)
Last but certainly not least, make sure you're using a swamp dragon armored with a dragon barding deed for extra damage reduction. Keep extra deeds on you.