Recipe
Physical two-handed mace
Recommended method
Greater Essence craft
Transmute to Magic, then Greater Essence of Abrasion guarantees Adds # to # Physical Damage as you go Rare. Fill the rest with Perfect Exalted Orbs.
"#% increased Attack Speed" can't roll on a Ruination Maul. Pick a different base or drop it.
For the highest tiers here, craft on an item level 82+ base. Lower item levels still work but cap the rolls.
Endgame plan: this uses Perfect-tier currencies (Perfect Exalted Orb, etc.) for the highest possible mod tiers — they need a high item-level base to roll their best. Forced-mod essences stay at the Greater tier, because the Perfect tier of an essence forces a different special mod rather than a stronger version of the one you want.
Use the Greater Essence of Abrasion (not the Perfect one) to guarantee Adds # to # Physical Damage. The Perfect Essence of Abrasion forces a different mod — gain 15–33% of damage as extra Physical damage (martial weapon) — so it would NOT give you Adds # to # Physical Damage.
Step-by-step
Get the base
Find a Ruination Maul (Two Hand Mace) at item level 82+ so the best tiers are available.
Quality it first
Use Blacksmith's Whetstone to bring the Ruination Maul to 20% quality before crafting.
Transmute to Magic
Use a Perfect Orb of Transmutation on the white base — it becomes a Magic item (these essences are used on Magic items).
Use Greater Essence of Abrasion
Use Greater Essence of Abrasion on the Magic item — it becomes Rare with a guaranteed Adds # to # Physical Damage.
Exalt for #% increased Physical Damage
Use a Perfect Exalted Orb with an Omen of Sinistral Exaltation (prefix only) to add #% increased Physical Damage.
Divine to perfect
With the right mods on, use Divine Orbs to push their numeric rolls toward maximum.
Path of Exile 2 crafting is partly random. The odds and costs below are realistic estimates to set expectations — your results will vary roll to roll.