Target
Flat defense (all damage types)
Journey
Hit zone Body
Weapon upgrade
Defense
Boss and unique weapons go to +5; they use half the level shown (+10 → +5, +7 → +3).
Stamina limited
Ring
None Chloranthy Ring (+7/s) Chloranthy Ring+1 (+8/s)
Chloranthy Ring+2 (+9/s) Chloranthy Ring+3 (+10/s)
Consumable
None Green Blossom (+6/s) Budding Green Blossom (+9/s)
Stamina limited: long fights where you keep attacking. Stamina does not refill while attacking and refills at 45/s otherwise, so each point spent costs 1/45 s.
Buffs and rings
Weapon buff
None Best for each weapon (auto)
Charcoal Pine Resin (fire 85) Gold Pine Resin (lightning 95)
Pale Pine Resin (magic 90) Human Pine Resin (dark 95)
Magic Weapon (magic 75%) Great Magic Weapon (magic 85%)
Crystal Magic Weapon (magic 95%) Darkmoon Blade (magic 95%)
Lightning Blade (lightning 95%) Dark Blade (dark 85%) Carthus Flame Arc (fire 80%)
Blessed Weapon (physical ×1.075)
Catalyst Best I can use
Catalyst upgrade
Spell buff
Spell buff comes from the catalyst, its upgrade and your Int / Faith, as the equipment screen shows it; a catalyst whose requirements you don't meet adds nothing. "Best I can use" takes the strongest one of the spell's school that your stats allow. Catalysts that stop at +5 use half the upgrade shown, like weapons.
Pick the best rings for each weapon
Rings 0/4 (Chloranthy Ring counts too)
Magic Clutch
Fire Clutch
Lightning Clutch
Dark Clutch
Lloyd's Sword (full HP)
Red Tearstone (HP ≤ 20%)
Flynn's (light load)
Pontiff's Right Eye
Knight's +5 Str
Hunter's +5 Dex
Carthus Milkring +3 Dex
Scholar +5 Int
Priestess +5 Fth
Values from the game files. Clutch rings ×1.15 damage of their element, Crown of Dusk ×1.05 magic. Lloyd's, Pontiff's and Flynn's raise attack, Red Tearstone and Clutch rings raise damage. Stat rings count for requirements and are added on top of the spread shown. Buffs only go on weapons the game lets you buff (no elemental, Blood, Poison, Blessed or Simple infusion, and not unique weapons such as Storm Ruler); paired weapons get less from resins and Blessed Weapon (fitted to in-game measurements), spell buffs are not reduced. Great Swamp Ring and Witch's Ring do not raise spell buff or buff damage (tested in game).