Notes from author
This build is made with a Paladin look in mind.
You have a few spells to aid you, change them as you like:
Heal
Great Heal
Replenishment
Lightning Spear
Wrath of God
Sunlight Blade
You are a Weapon Master Paladin:
You can swap out the spear for following weapons:
Winged Spear
Claymore
Avelyn (Crossbow)
And maintain medium roll, you are a heavy armor after all, so fast roll would seem RP breaking.
You can even 2h a Zweihander if you feel like it, but might need to remove other weapons to keep medium roll.
2h Zweihander + Grass shield on back, is possible.
The point is that you can swap to w/e weapon you prefer and still maintain a decent dmg output and have a good amount of total health, with decent poise.
All that makes this build very versatile.