Requires 
Heart of Steel is a Polymorph Skill in Divinity Orginal Sin 2.
Heart of Steel location
Vendors
- Available starting from level 4
- Doctor Leste at Fort Joy Ghetto (Fort Joy)
- Exter at Amadia's Sanctuary (Fort Joy), Lady Vengeance
- Trader Ovis at Driftwood (Reaper's Coast)
- Eithne at Cloisterwood (Reaper's Coast)
- Elven Thorndancer at Reaper's Coast elf camp
- Jawbone the Merchant at Temple of Tir-Cendelius (Nameless Isle)
- Black Ring Alchemist at Wordless' Black Ring camp (Nameless Isle)
- Trader Friel at Arx
Heart of Steel effects
- Scroll crafted by combining Sheet of Paper, Life Essence, and any metal
- Scroll costs 2 AP to use
- Scales with level and Geomancer
Heart of Steel trivia & strategies
- Bonus increased by 35% as of Patch v3.0.168.526
- Because of its long duration, this skill is great for pre-combat buffing
AnonymousNot that powerful on it's own, when used in combat, but excellent for pre-buffing yourself prior to combat, since it lasts 5 turns.
- Anonymous
- Anonymous
- Anonymous
I like to pair it with Chameleon Cloak and wait in invisibility until my armor restores fully
- Anonymous
The tooltip does not reflect the complete effects of the skill. its basically fortify and mend metal in one (minus the extra effects of fortify) and thus justifies the AP cost. Belongs to the polymorph tree which is a great supplemental tree for any character. Probably one of the most underrated skills in the game.
- Anonymous
Playing as a Warfare + Necro + Poly character using two-handed weapons and wearing mostly Int. armour (using him as a dedicated mage killer), found this skill really useful for survivability against opponents dealing physical damage, especially early on. Probably worth using on any warrior/fighter character who isn't using shields.
- Anonymous
How is it that this skill scales with Geomancer but not with Polymorph? You know given it’s a Polymorph skill? No?
- Anonymous
Note that Heart of Steel scales with neither INT nor STR. It only scales with Geo.
Pyro 10 Geo 10 Mage could use this skill to pump up physical armor.
Warfare 10 Geo 10 Warrior could use this skill to combine with Bone Cage, Overpower, Reactive Armor etc.
At level21(Geo5) mage can have 1k physical armor ~ 3k physical armor with a shield.
Basic Physical Armor : 1,000 ~ 3,000
Heart of Steel : 1807 + 598 × 4 turns = 4,199
Fortify : 2408
Tooltip doesn't tell you this, but Heart of Steel increases physical armor by 1807, making total increase 4,199. If you have Geo10 character, it'll be a bit more powerful. Both Fortify and Heart of Steel can be a good tool skill.
Not that it is important to be level21. It's just I was at level 21 when I tested this. It'll be the same at any level.
- Anonymous
This is the most useless skill in the game. 2 AP, 5 CD and mediocre amount of physical armor.
On the other hand you could to Fortify which is instant armor plus unable to be teleport/nether swapped, plus removes some conditions. 1 AP, 4 CD.
And if you wanted to, for 1 AP, you could do Mend as well and that is also an AoE for allies.
Heart of Steel is a useless skill.
- Anonymous
Its not under its description but this Skill also adds additional Physical Armour for the duration.
This spell restores more armor overall than any other, however it does not clear debuffs.
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