How do I get Sword of the Old King in 7DS Origin?

The Sword of the Old King page lists its sources in Seven Deadly Sins: Origin: dungeons, bosses, crafting and rewards.

What is the set bonus of Sword of the Old King?

Sword of the Old King belongs to a gear set whose 2/4/7-piece bonuses are detailed on its page, with per-tier stats.

Sword of the Old King

Bound Armor✦111 → 130

Equipment HP

14,739→21,677

Equipment Defense

5,276→7,758

Special Attack Damage Increase

28.49%→42.02%

Normal Skill Damage Increase

21.93%→32.4%

Max Reinforcement+5

A skin for King Bartra's old friend Slater. His discipline from leading the kingdom's elite troops hasn't gone anywhere.

Unique Talent

Increases damage dealt to Stunned enemies by 25%. Landing the Special Attack on a Stunned enemy increases the Stun duration by 3 sec. (Cooldown: 20 sec)

Reinforcement

From

→

Gold Cost

884k×

EXP Needed

571,480

Random Options

3 slots

Each slot randomly rolls one stat from those below. 3 slot(s) available.

Crit Damage+7.95%→+19.88%5.26%

Crit Chance+4.5%→+11.26%5.26%

Attack Increase+3.15%→+7.87%5.26%

Defense Increase+2.53%→+6.32%5.26%

HP Increase+1.86%→+4.64%5.26%

Tag Skill Damage Increase+17.01%→+42.52%5.26%

Normal Attack Damage Increase+13.8%→+34.51%5.26%

Debuff Duration Efficiency+13.31%→+33.28%5.26%

Buff Duration Efficiency+13.31%→+33.28%5.26%

DoT Efficiency+12.88%→+32.19%5.26%

Special Attack Damage Increase+12.57%→+31.42%5.26%

Normal Skill Damage Increase+9.68%→+24.18%5.26%

Crit Defense+7.95%→+19.88%5.26%

Barrier Efficiency+7.71%→+19.27%5.26%

Ultimate Move Damage Increase+7.58%→+18.95%5.26%

Magic Charging Efficiency+6.66%→+16.65%5.26%

Healing Efficiency+6.17%→+15.41%5.26%

All Elemental Burst Efficiency+5%→+12.49%5.26%

Crit Resistance+4.5%→+11.26%5.26%

Sword of the Old King

Unique Talent

Skull Smash

Reinforcement

Random Options

Crafted from

Required materials