Iron Mask

The fourth Outer One, and the reviewer rates him accordingly — high damage, huge utility, and a lightning effect off the exclusive weapon he keeps coming back to. His one reservation is the revive: it only really works if you have planted a save point first, so killing Iron Mask before he acts makes the match much easier. (31:57)

He opens by saying that discussing anything below full investment is fairly academic for an Outer One, and explains the kit at Max Manifestation throughout. (1:01)

Read the enemy's buff bar before you swing

The passive alternates two states on him, and this is the single most common reason players think their damage is broken. One state carries magic damage reduction, the other physical. Attack into the wrong one and the hit lands soft; attack into the right one and it lands hard — and attacking flips it to the other, so the next hit has to switch damage type too.

The reviewer's advice is simply to look before you attack. If you have wondered why an enemy Iron Mask feels unkillable while yours does nothing, this is almost certainly why. (4:08)

The save-point mechanic is a save/load, not a revive

At end of turn he picks one of three: fix a save point, return to it, or advance.

Fixing leaves an information body on the field and records his current buffs, shields and HP. Returning restores all of it — and you don't have to die to use it. If a turn is going badly, jump back voluntarily, then re-fix. The reviewer's framing is the clearest one: think of it as save, load, save, load.

The catch is that the Backup Process only stops him dropping below 1 HP. Without a save point down, that is all it does — he survives at 1 HP and the effect is spent. That is why he calls the revive weak in practice. (5:09)

The third option, Advance, is a deterrent rather than a buff: hitting him then clears the attacker's buffs, heals his team and strips their debuffs. It won't stop anyone attacking, but it makes them think. (6:41)

Class: System Master for PvP, King to punish melee

Duel Master gives +40% Physical Penetration and +30% Crit Rate, damage increases on both single-target and area skills, TP back and cooldown reduction on physical skills — and a debuff-duration extension that makes it, in his words, a raid class. He doesn't expect to use it in PvP. (9:16)

King turns his counterattack into Endless Afterglow and grants King's Authority: ignores negative auras, immune to Stun and Fear, ignores extra-action denial. With the weapon's Counter Range +1 on top, attacking him becomes genuinely unpleasant. (10:29)

System Master is the one he rates for PvP, and he calls it the kind of effect an SRPG shouldn't hand out for free. Every ally except Outer Ones and collabs gets Overclock: +15% base stats, Movement +1, and 1 TP — and he starts at 4 TP. Meanwhile every enemy Outer One and collab gets Underclock: base stats down and Movement -1, unremovable, for two turns. Movement -1 on the opening turns makes committing an Outer One into him very awkward. (12:20)

It also puts enemy skills on cooldown, which several Outer Ones ignore — Heidelun and Cyrano Bernstein among them. His aside: that leaves Black Prince as the one who actually eats it. (13:22)

The Fourth Wall is the best 1 TP skill in the kit

It caps any single hit at 30% of the target's Max HP for allies in a 3x3 — so a 5,000 hit onto a 10,000 HP unit lands for 3,000 and the rest evaporates. It also applies Cognitive Dissonance to the attacker.

Two things the reviewer tested. A hit above the 30% threshold consumes a stack even if it only chews through shields — so it isn't infinite. But a hit below 30% doesn't consume anything at all, which is what makes the whole team so hard to kill. And because Cognitive Dissonance stacks per target hit, one enemy area skill catching four buffed allies applies four stacks at once, which is far easier to reach than he expected. (14:25)

Time Hijacking is the control piece

3x4, 60% of ATK ignoring RES, and with the weapon's lightning riding along it hurts. What matters is the Hijack debuff: no TP gain, and any extra action or extra turn the target earns is cancelled and transferred to Iron Mask, up to two stacks.

The reviewer flags that this cancellation also beats "ignores extra-action denial" effects — it isn't denial, it's theft. He uses it as the opening move most games. (19:34)

Note the wording: the Hijack rider only applies when Iron Mask himself casts it, not a copy of him. (20:06)

Sanctuary of Thirteen Wings, read carefully

The text runs the ally clause and the enemy clause together, which trips people up. Sanctuary of Thirteen Wings reads as: for allies inside — when they land a critical hit, the longest cooldown drops by 1, and at end of turn they heal 15% of Max HP and gain a shield, with +15% penetration resistance for non-Outer-Ones. Separately, for enemies inside — Crit Rate and Crit damage taken up, Radiance resistance down, and Outer Ones and collabs take +20% damage.

"When a critical hit occurs on allies" means allies dealing crits, not receiving them. (23:11)

Equipping it also grants Heal Block immunity, which he notes is aimed squarely at Gamma. The usual line is to jump forward with it and follow up with Time Hijacking. (24:41)

Skills to skip

Phantom Sword Illusion he expects never to cast outside raids. The ultimate deals big damage but drops him to 1 HP, and he doesn't build around it the way Cyrano Bernstein does. (21:41)

One numbers correction worth carrying elsewhere: Endless Afterglow's follow-up is only 30% of ATK, so a Portable Whetstone boosting follow-up damage by 40% adds about 12% to the hit — roughly 3% overall. Follow-up damage as a weapon specialisation exists because of Alfred Frederick, whose follow-up is 120%. Don't copy it onto Iron Mask. (18:02)

Gear

The Guide set is the pick. Without it, Envoy of the Storm or Scorpion of the Underworld. Accessory: the new feather at ★3 or better, ★5 if you can manage it; failing that Necronomicon, and failing that Black Banner. (25:13)

Lightblinger: ★3 minimum, ★5, then full

The weapon drops lightning on up to four enemies after an attack or counter, ignoring 60% RES and shredding area resistance as it repeats. At ★3 a critical hit makes it fire at 100% instead of 50% — and since his Crit is very high, that is effectively always. ★5 adds Counter Range +1, which is what makes the King build work. ★6 takes it from three targets to four. Full awakening is best, ★3 is the floor. (26:46)

Runes

A full Light set is the cleanest answer — the +3% ATK matters a lot on his stat line. If you don't have it, Sun in slots 2 and 5 with Chaos elsewhere gets you most of the way. (27:16)

Artifacts

Crimson Anemone, his exclusive, is the one to fear: +20% penetration resistance, -50% DoT, +10% Max HP, and +20% ATK and damage dealt for every allied player who dies. In a 3-player guild battle that is up to +60%. The reviewer's practical warning: kill the Iron Mask carrying it first, or you will meet a monstrous one later. (30:54)

Without it, Crystal Orb of Insight+1 more → — Crit Rate, Crit-taken reduction and a +30% damage-taken debuff before combat. Constellation of Fate+1 more → works the same way it does on Holy King Lacid, and Will to Slay / Killing Will is for ultimate-centric dealers, which he isn't. (29:22)

Investment

Not really a value character, but if you must: 2 manifestations, because Sanctuary of Thirteen Wings has to be there and wants a rank. 3 if you want Crystal Orb of Insight working properly. Weapon at ★3 minimum. (8:45)