Bladeseer

Fighters always strive to be two steps ahead of their opponents, studying their techniques, predicting their moves, and outmaneuvering them by precision and skill. The bladeseer takes this approach one step further, using their weapon as a focus to manipulate fate and see beyond normal means. As the name implies, such fighters often use blades, but their techniques can be used with any melee weapon.

Divination Training

When you select this archetype at 3rd level, gain proficiency with Arcana. If you are already proficient, you instead gain an expertise die . Additionally, you learn the guidance and true strike cantrips.

Bloody Prophecy

Starting at 3rd level, you can spend 1 exertion to hold a melee weapon and concentrate on the future as a bonus action.

You gain a prophecy die, which starts as a d6 and only applies to the weapon you used as a focus. You can add your prophecy die to your attack rolls or damage rolls, which you choose at the beginning of your turn.

If you choose to add it to an attack roll and miss, the prophecy is still unfolding and the die’s size increases by one step (to a maximum of d8). On a hit, or if you choose to add it to a damage roll, the die’s size decreases by one step (to a minimum of d4) as you leverage the forces of fate.

Your prophecy die lasts for a number of rounds equal to your proficiency bonus.

Weave Sight

Beginning at 7th level, while you have a prophecy die, you can spend 2 exertion as a reaction to trace the strands of fate and see invisible creatures and objects as per the see invisibility spell. This effect lasts for the duration of your prophecy die.

Additionally, your prophecy die now starts as a d8 and the maximum size of your prophecy die increases to a d10.

Sight Beyond Sight

Starting at 10th level, while you have a prophecy die, you can spend 3 exertion as an action to see and hear at a distance as per the clairvoyance spell. This effect lasts for the duration of your prophecy die.

Additionally, the maximum size of your prophecy die increases to a d12.

Prophetic Defense

Beginning at 15th level, as a reaction when you are hit by an attack, you can spend 1 exertion to add your prophecy die to your Armor Class (including against the triggering attack) until the beginning of your next turn.

Additionally, your prophecy die now starts as a d10.

Omen of Victory

At 18th level, when you use Bloody Prophecy, you can choose a creature you can see and foretell its downfall. It has disadvantage on attack rolls against you, you have advantage on saving throws against spells and effects from that creature, and your prophecy die is always a d12 against it. The prophecy die increases and decreases as normal against other creatures.

Once you use this feature, you must complete a long rest before you can use it again.