Raw Broadsword+7, part 2
Firelink Shrine
Purchase the Tower Key from the Shrine Handmaid for 20,000 souls. Use the key to unlock the tower door and proceed up the tower behind Firelink Shrine. Look for a ladder and kick it to fully extend the ladder down. You will need this ladder to easily reach Pickle-Pee for trading. Ascend the tower again, then take the elevator up to trigger Patches to lock a door behind you. Exhaust his dialogue, warp back to Firelink Shrine, and find him there. Exhaust his dialogue again and he should be a merchant at the Shrine.
Trade with Pickle Pee for Titanite Chunk & Twinkling Titanite, Dark Souls II
Trade a Black Firebomb with Pickle-Pee to get Titanite Chunk x 1 in return. Trade a Prism Stone to get Twinkling Titanite x 1 in return.
Farron Keep
Estus Shard at Farron Keep, Dark Souls III
Undead Bone Shard at Farron Keep, Dark Souls III
From the Farron Keep bonfire, an Estus Shard is found near a Rotten Slug and beside a fallen tower. Near the Keep Ruins bonfire is an Undead Bone Shard, found inside a tower and guarded by a gang of Rotten Slugs. Use Firebomb to quickly dispatch of the slugs.
Poison Gem at Farron Keep, Dark Souls III
Location of Sage's Coal, Dark Souls III
Grab a Poison Gem. The Rotten Ghru Dagger when infused with a Poison Gem can be used to quickly poison many strong enemies and some bosses. The Sage's Coal is found inside a tower near a Dark Wraith. Give the Coal to Andre and he would be able to infuse your weapons with Blessed, Crystal, or Deep. You need the Blessed infusion for the Caestus. Use the Blessed Gem you collected at the Cleansing Chapel.
Titanite Shard x 7 and Sage's Scroll at Farron Keep, Dark Souls III
Near the Sage's Scroll is a birch tree guarded by a Great Crab. Lure the Great Crab near the tree and use the great arrows fired by the giant archer to kill the crab. Collect all Young White Branches scattered near the birch tree in order to advance the quest line of the giant archer.
Titanite Shard x 8 are scattered throughout Farron Keep. Equip the Blessed Red and White Shield+1 and/or have the Caestus infused with a Blessed Gem. The HP regeneration of these two Blessed items should somewhat counteract the poison. You should now have enough Titanite Shards to upgrade the Caestus to +3.
Twinkling Titanite & Dreamchaser's Ashes above Farron Keep, Dark Souls III
Climb the ladder near the Keep Ruins bonfire. The Crystal Lizard near the Old Wolf of Farron bonfire drops Twinkling Titanite x 1. Grab the Dreamchaser's Ashes, also found near the bonfire. Give the Ashes to the Shrine Handmaid, tell her where you found it, and the Handmaid would sell an unlimited number of Titanite Shards. Warp back to Firelink Shrine and exhaust Sirris' dialogue to advance her quest line.
Large Titanite Shard x 2 above Farron Keep, Dark Souls III
Start from the Old Wolf of Farron bonfire and ride the elevator up. Crystal Lizard x 2 are found near a petrified dragon, these lizards drop Large Titanite Shard x 2. Nearby is a third Crystal Lizard that drops a Heavy Gem. You should now be able to upgrade the Raw Broadsword to +5.
Painted World of Ariandel
Large Titanite Shard x 2 at Snowfield, Dark Souls III
Large Titanite Shard x 2 at Corvian Settlement, Dark Souls III
SL1 NG+7 Cheese the second Greatwolf near the tower, Dark Souls III
Large Titanite Shard x 6 are scattered throughout the area. One is from a corpse by a Birch Woman, at the Snowfield. One is dropped by a Crystal Lizard past the Rope Bridge Cave bonfire. Two are dropped by the Crystal Lizard near and above the Corvian Settlement bonfire. The remaining two are obtained by fighting the Gravetender Greatwolf at the Snowfield. Deal enough damage to the Greatwolf and it would drop Large Titanite shard x 3 and disappear. If you want another Large Titanite Shard x 3, fight the Greatwolf again at a separate location at the Snowfield. The Greatwolf is challenging by itself and the difficulty is compounded by the wolf minions. A safer way to obtain the remaining Large Titanite Shard x 2 is to farm the Corvian Knight near the Corvian Settlement bonfire. Purchase some Rusted Coins from Patches, who should be at Firelink Shrine by now. Also equip the Symbol of Avarice.
Near the Corvian Settlement bonfire is the Forlorn Corvian, who sits by a corner in a nearby kitchen. Exhaust his dialogue and answer yes to his question. After defeating Friede, exhaust his dialogue again to receive a Titanite Slab.
Farm a Corvian Knight for Large Titanite Shard, Dark Souls III
Farm the Corvian Knight near the Corvian Settlement bonfire for Large Titanite Shards to upgrade the Blessed Caestus and perhaps the Knight's Crossbow as well. The Corvian Knight also drops Titanite Chunk, but the drop rate is minuscule. A Twinkling Titanite is dropped by a Crystal Lizard found underneath another Corvian Knight, who is perching upside down the eaves of a tower. Use a ranged weapon to lure the Corvian Knight away from the lizard.
SL1 Cheese Sir Vilhelm, Dark Souls III
Quick way to cheese Sir Vilhelm, Dark Souls III
Sir Vilhelm blocks your path to the Snowy Mountain Pass bonfire. He can be cheesed by two-handing the Grass Crest Shield and pushing him off a cliff.
Titanite Chunk x 2 & Large Titanite Shard x 4 at Snowy Mountain Pass, Dark Souls III
The Snowy Mountain Pass has Large Titanite Shard x 4 and Titanite Chunk x 2. These should allow you to upgrade the Raw Broadsword to +7. The Follower Torch is found on a corpse. The torch can be used in conjunction with the Irithyll Straight Sword to fight various bosses. The Torch sold by the Shrine Handmaid can be used for the same purpose, but note that the Follower Torch deals more physical damage while the Torch does more fire damage. Go through the Snowy Mountain Pass, open the shortcut to the Ariandel Chapel bonfire, and light the bonfire as necessary.