Mythril Guard

A Mythril Guard studies itself in understanding the weave, not to controll it like a spellcaster, but instead to sew it into their own body, controlling the magic of others, rather then creating their own.

These powerful Anti-Mages are often raised by nessesity, as powerful mages or clerics take over, a savy fighter decides to counter them directly, stopping them with every move.

The technique of the Mythril Guard has been passed down in secret by many students of long gone mage fighters, and today is often a mythic ability that spreads fear and hope in those that know about it.

The development of a Mythril Guard is to learn to weave themselves into the weave as if they where a natural part of it, gaining more control of the elements of it in their surroundings.

Weave Sense

Starting at 3rd Level, when you select this archetype, your senses connected to the weave grant you great understanding of magic and its properties. You can cast the Detect Magic and Identify spells as a ritual, without the use of any material components.

Additionally, you gain proficiancy with the Arcana skill, and when you roll a skill check with the Arcana Skill, your proficiancy bonus is doubled.

Spell Destruction

Starting at 3rd level, you gain the ability to pull on the weaves threads, potencially disruping any spell cast that you can see. As a reaction, when a spell is cast within your line of sight, you can attempt to disrupt the spells casting. Roll a d20 and add your proficiancy bonus to the roll. If the result is equal too or more then 10 + the spells level, that spell fails. This is a non-magical effect, and thus can not be countered by a Counterspell spell.

You can use this ability a number of times equal to your Intelligence modifyer. This recharges on a short or long rest.

Magical Lore

Starting at 7th Level, your connection to the weave grows strong enough that you can better understand any magics that you can see. You instantly know whether any effect is magical, whether the effect is devine magic or arcane magic, and if the magic is innate or not.

Additionally, while detect magic is activated, you can spend 1 minute studying any magical effect to learn what spells, if any, are being detected. Similarly, when you cast Identify on any living creature, you can also learn any spells it can cast from Innate Spellcasting, and any Magical Items it is attuned to.

Woven Body

Starting at 15th Level, the stitches of the weave are so deep that they course through your skin, protecting you from magical effects. You have advantage on any saving throws against magic, additionally, anyone targetting you with any magical spell attacks have disadvantage on their attack roll.

Mythril Soul

Starting at 18th Level, you have become nie-unresemblable from a Mythral in your soul, as the weave itself courses through your very existance, and you too cource through it. During a long rest, you can select one school of magic. Any attempts to cast a spell of that school within 120 feet of you instantly fail and you learn the exact possition of the caster of that spell.

<img src='https://2.bp.blogspot.com/-jLiaeQBPAWw/WF_frfbVVYI/AAAAAAAAASQ/Fg0JBYxTEuEodFsm-7-5xAHxatpuvF1vgCLcB/s1600/weave.png' style='position:absolute; top:520px; right:-40px; width:570px'