Notes from author
A build I designed for co-op with a friend of mine. The strong attack on Ricard's rapier combined with Sunlight Blade means you will have massive damage outputs on a boss.
The silver knight shield provides excellent stability, and looks very nice with this setup. I do also sometimes swap it out for Sanctus, both for an alternative look, and for some free healing while being summoned as a gold phantom.
The Darkmoon bow with Moonlight arrows are used simply for Ranged support. However this along with Sunlight Blade does mean we will have to kill Gwyndolin. Hopefully you don't mind Darkmoon invasion too much.
This brings me to my next point, PvP! This build is equally as strong in PvP as it is in PvE. If you want to PvP with this build, I suggest swapping Heal with either Tranquil Walk of Peace or Replenishment. Great Sunlight Spear can be swapped for Emit Force or Magic (or Great Magic) Barrier.
SL125 Adjustments:
If you are someone who likes to take builds to SL125 for PvP, Bring your Attunement to 19 granting you an extra slot. I generally use this slot to replace Heal and Great Sunlight Spear with Vow of Silence. Also bump your faith up to 34 (4 extra MagAdj isn't bad)
Aesthetics:
I know this doesn't bother many people, but for some, appearances matter, so if this build looks "Ugly" to you, I have a quick fix. Swap Elite Knight Armor for Brass Armor, and Silver Knight Shield for Sanctus. Now when you are summoned, you shall glow with True Gross Incandescence.