THE WALL! THE WALL!! NO ONE ON EARTH CAN MAKE IT FALL!!!
RH1: Havel's Greatshield +5
RH2: Dagger +10
LH1: Drakekeeper's Greatshield +10/Blossom Kite Shield +10
Head: Lucatiel's Mask +10
Body: Ironclad Armor +10
Hands: Ironclad Gauntlets +10
Legs: Ironclad Leggings +10
Royal Soldier's Ring +2
Third Dragon Ring
Ring of Giants Ring +2
Ring of Steel Protection +2/Ring of Restoration/Old Sun Ring/Ring of Thorns +2/Chloranthy Ring +2/ Life Ring +2
Feel free to lower Vigor a bit to get Attunement up to 10 and use Iron Flesh if you'd like.
Find places that make it difficult for your opponent to get passed you, as well as areas where you can shove them off edges to their doom easily. Huntsman's Copse has a couple of ideal locations for this. Teach them that NO ONE ON EARTH CAN MAKE YOU FALL!