Raw Broadsword+10
Painted World of Ariandel
Titanite Slab at Depths of the Painting, Dark Souls III
Start from the Ariandel Chapel bonfire. Break the bridge and use the broken bridge as a ladder. Descend the broken bridge and make your way down to the Depths of the Painting bonfire. En route you will find a Crystal Lizard that drops a Twinkling Titanite. Do not attack the lizard. Approach it and it would run off a cliff, thus killing itself. Light the Depths of the Painting bonfire and locate Birch Woman x 4 past a frozen lake. Be careful of any Great Crabs you trigger. Kill the furthest Birch Woman in order to reveal a steep ladder. Climb the ladder and then another steep ladder to reach a Titanite Slab.