5★Sword

Fortmaker

Max Base ATK: 411

Obtain: Acquisition Center: Arsenal Exchange

Weapon Skills

Skill 1

Intellect Boost [M]

Intellect +16/67/124

Skill 2

Ultimate Gain Efficiency Boost [M]

Ultimate Gain Efficiency +4.76/20/37.14%

Passive

Inspiring: Back to the Broken City

ATK +5/9/14%. Arts Intensity +25/45/70.

Scaling values shown as skill L1/L5/L9 where they change with rank.

Best Operators

Laevatain#3

Main DPS · Tier A

For a 5 Star option, Fortmaker slots in well since its main stat lines up with Laevatain's stat specialty and its secondary can feed into her Ultimate Gain and its got an intrinsic attack boost as well.