Database

Affixes

One affix, level by level, with the gems that raise it.

Iron Helmet

Increase Critical Damage Resistance. Upon reaching the required level, reduce the impact of Critical Hits received. Critical Hit: Hitting weak points deals Critical Hits, increasing DMG based on Critical DMG while enhancing Impact. The head is a weak point for both Gyldhunters and most monsters.

Group defense
Highest level 5
Gems that raise it 12
Items that carry it 60

Every level

The value each level states. An effect that only begins at a later level has no cell before it.

Level	Critical Resistance
1	2.2%
2	4.4%
3	6.6%
4	8.8%
5	11%

Gems that raise it

Each gem raises the affix by the listed levels, up to the highest level above.

Gem	Socket	Tier	Levels
Iron Helm Agate	Agate	1	1
Aegis: Ironhelm Agate	Agate	2	1
Bulwark·Iron Helm Agate	Agate	2	1
Fortitude·Iron Helm Agate	Agate	2	1
Iron Helm · Battlebond Agate	Agate	2	1
Iron Helm · Brawl Agate	Agate	2	1
Iron Helm · Fervor Agate	Agate	2	1
Iron Helm · Fighting Spirit Agate	Agate	2	1
Iron Helm · Focus Agate	Agate	2	1
Iron Helm · Fortitude Agate	Agate	2	1
Iron Helm · Skycleave Agate	Agate	2	1
Ironhelm·Rangeward Agate	Agate	2	1

How this affix is handled

What the game data states about this, for the build shown in the header.

Active equipment count for affix budgetsAn affix budget uses 8 active equipment pieces: 5 armor pieces, necklace, ring and the currently active weapon. The inactive second weapon does not contribute.
Affix-level capacity per equipment itemEach active equipment item contributes 1/2/3/4 affix levels at Green/Blue/Epic/Legendary rarity respectively.The invariant held for every audited live weapon, armor and jewelry row in the pinned snapshot.
Full loadout affix budgets with Wine Level 2With 8 active equipment pieces and Wine Level 2, total affix-level budgets are Green 12, Blue 20, Epic 28 and Legendary 36.A Blue total of 30 is impossible under this eight-piece active-loadout model.
Wine Level 2 affix contributionWine Level 2 provides four affix slots with a per-affix limit of one: four distinct +1 affix contributions, not +4 to one affix.