April 14, 2024


The Iron Thorn is a four-star sword that we can obtain easily in our Genshin Impact account by making it in the blacksmith in exchange for a North Sword Prototype, 50 pieces of glass and 50 pieces of white iron.

It is a very interesting sword to be a smith and in some cases it will be the best F2P option for characters that take advantage of the Elemental Mastery attribute to a great extent; In addition, the Iron Thorn has a very interesting Passive Ability that will allow us to increase the total damage of our characters for a few seconds.

Obviously it’s not as good as the Oath of Freedom because it provides a lot of support to the group with its Passive Ability as well as having the highest stats, but for the Iron Thorn a free weapon is a good option to replace this sword if you don’t have it. we have.


Let’s start by looking at its attributes:

  • Base Attack Level 1: 42.
  • Base Attack Level 90: 510.

From the outset we have a medium Base Attack within what we find in a four-star sword, as is the case with Kagotsurube Isshin , Lion’s Roar and Poisonous Wish.

  • Elemental Mastery Level 1: 36.
  • Level 90 Elemental Mastery: 165.

As a secondary stat we find a fairly generous amount of Elemental Mastery despite having a decent Base Attack, which will be great for characters that take advantage of this attribute (there are not many weapons that provide Elemental Mastery or that provide this amount).

Its passive effect is as follows:

  • When inflicting Elemental Damage to an enemy we will increase the damage of the bearer of this sword by 6% (12% in R6) for 6 seconds, this effect can be accumulated a total of two times and activate every second.

When we hit an enemy with this sword dealing Elemental Damage we will see a small sword around the character just like the Sea Serpent Marrow and this will be what tells us that we have the damage bonus (only unlike the marrow we will have two swords maximum, since it is only possible to accumulate the bonus twice).

We are very interested in having this weapon at R5 because if we manage to get the two Elemental Damage bonuses before using the character’s Ultimate Ability we can increase its damage by 24%, which is not bad at all.


Mainly what interests us the most about the Iron Thorn is the amount of Elemental Mastery it provides, so we will look for a character that can get a lot of profit from this attribute.

Kaedehara Kazuha in Genshin Impact

When performing Whirlwinds with Pyro, Electro, Cryo or Hydro Kaedehara Kazuha grants the entire team an Elemental Damage Bonus based on the amount of Elemental Mastery Kazuha possesses, this bonus lasts 8 seconds and will be corresponding to the element involved in the Whirlwind.

That’s why we’re interested in this sword on Kazuha, as we need him to have as much Elemental Mastery as possible to give very high Elemental Bonuses. Kazuha will also take advantage of the damage increase from the passive, as with his Elemental Ability he does two Anemo hits quickly which will allow him to get the two bonuses and allow us to add that damage to his Ultimate Ability.

Kuki Shinobu in Genshin Impact

Kuki Shinobu scales his healing by 75% of his Elemental Mastery and the damage of his Ultimate Ability by 25% thanks to a passive talent he possesses and also allows him to generate many Elemental Reactions, since with his Elemental Ability he constantly deals Electro damage and The Elemental Mastery that the Iron Thorn provides to increase the damage of these does not hurt us.

Her Ultimate’s damage isn’t bad for a healer, so she can also take advantage of the sword’s passive talent to get the two damage increase bonuses by using her Elemental Ability before she ults.

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