Vambraces of Forge: The Vambraces of Forge were made out of the very same material that made up Thor's hammer, Mjolnir. The mythical Æsir metal, Uru, was secretly forged in the fires of Eitri and Brokkr workshop and then cooled in the River Styx by Hephaestus. Like Mjolnir, the vambraces would of been virtually indestructible, if Hephaestus did not cool the metal cuffs in the River of Styx. The sacred river granted the cuffs indestructibility and the ability to deflect gunfire, blasts, small missiles, and other projectile weaponry. The metallic cuffs can absorb the impact of melee weapons, explosions, and even brute strength in hand to hand combat. The cuffs were also modified to release a huge spherical blast of energy with a blinding flash of light when clashed together. The flash was powerful enough to temporarily disorient the eyes and ears of a Cyclops, plus knock it away from her.
Lasso of Apollo: Foreseeing into Shield-Maiden's future, the Sun God dipped an ordinary lasso into the sun and infused his divine power with its plasma. Because of his diverse positions as a God, Apollo was able to also bestow the lasso with many of his divine powers. The Lasso of Apollo was then sent as a gift to Athena who then gave it to her daughter, knowing what fate had in store for her. Due to being dipped into the sun, the lasso is highly conductive and is able to produce heat of great intensity, enabling the user to burn opponents when subdued, even potentially incapacitating them when hot enough. While the lasso normally burns at at heat of at least 60 degrees, if an enemy ensnared by it tries to break free from it's captivity, Helena can mentally raise the heat of the lasso. Being imbued with divine plasma, the lasso has an incalculable amount of heat potential. The lasso is also able to heal wounds due to Apollo being the God of Healing, but the time length of the healing process depends on how serious the injury is. It is also capable of restoring all forms ones injuries when given enough time. being the God of Plagues, the Sun God bestowed the lasso with disease creation and manipulation, allowing the user to mentally select which plague they wish to give to their opponent or amplify already existing ones. The longevity of the sickness once the lasso is removed however various from individual to individual. If her opponent is immune to all forms disease, this will not harm them. However, further damage inflicted to previous wounds is possible. Due to Apollo being the God of Truth, the lasso is able to compel seemingly anyone, including divine beings, held by it to tell and understand the absolute truth. However, very few have been seen to be capable of resisting its affects. The lasso is also completely unbreakable, immutable, and indestructible.
Athena's Tiara: Formed from the remains of Zeus's and Athena's legendary Aegis shield, the Tiara of Athena is indestructible. Athena has entered many battlefields using this tiara as a throwing weapon in order to pour her wrath from a distance. Given to her daughter for formal occasions, Helena quickly discovered that the tiara could serve as a boomerang. The throwing weapon is razor sharp on the edges, can cut through most substances, and protects its wearer from telepathic attacks.
Shield of Knowledge: What good is an enchanted sword without it's enchanted shield? Mímir, the wise one, once told Odin. The Shield of Knowledge was a gift from Odin to Helena, in order to protect her from her enemies, knowing full well she had made many because of his mistake. Aware he could not be there to protect her or give up Mímir, his trusted advisor, the All-Father sought to advise his daughter in all things without having to be present. Taking the Æsir metal, Uru, to Eitri and Brokkr; Odin requested the two to forge a shield with the face of a sculpted Mímir imprinted into the center. Once the shield was forged; the Father of the Slain then wandered into Jotunheim, the land of the giants, and paid an old visit to Mímisbrunnr "Mímir's Well," - a well that granted cosmic knowledge to those who drank from it's waters. It was this same well, Odin sacrificed his eye in exchange for this knowledge, and animated Mímir's decapitated head. Adding the same herbs that once revived Mímir into the well, the All-Father then plunged the shield into it's waters and began chanting the same revival rune from the myths. It was through this act, the shield became a sentient object -blessed with the gift of nigh omniscience, and could advise it's fated owner, Helena Troy. The Shield of Knowledge now speaks through the sculpted face of Mímir, advising it's owner with vast knowledge and wisdom.
Sword of Valhalla: Fully aware the Gods of Olympus would pour their wrath against his only daughter, Odin ordered the Valkyries to present a young Helena, a magical sword called the "Sword of Valhalla." Not wanting her daughter to be aware of her Norse lineage, Athena took the sword instead and waited for Helena's foretold journey to begin. When the Gods of Olympus discovered the whereabouts of Helena on the concealed island of Atholis, they wasted no time in laying siege against the island's capital, Pallas. Knowing the prophecy had begun, Athena bestowed her daughter with her father's gift and banished her from the realm to preserve her life. According to the Valkyries, the blade of the sword was forged by the Sons of Ivaldi from the duplicate rings that dripped from Odin's golden ring, Draupnir. Odin being the God of Magic, enchanted the sword to contain a fraction of his abilities. It is also said the sword was one of the few magical swords that lit the Great Halls of Valhalla. Because of it's enchantment, the sword holds the power to summon a platoon of Einherjar; a nod to Odin being the God of Death. The rightful owner of the sword can mentally command the enchanted sword to transform into any ancient melee weapon: Pointed Weapons, Edged Weapons, and Trauma Weapons; a nod to Odin being the God of War. It is capable of cutting the fabric of reality, opening portals to the Nine Worlds. While not indestructible, the sword is able to multiply itself into eight swords, every ninth night, due to being forged from Draupnir. Down the center of the blade, a wide groove is inscribed with shimmering runes, granting the user the ability to recall the sword from any distance. Unlike Mjolnir, the Sword of Valhalla cannot pass through barriers; instead the sword has been enchanted to magically teleport itself to the user, a minor flaw as it takes a minute to return to it's owner. It is also said the sword can only be wielded by the warrior who will fight beside Odin and help lead the Einherjar into battle during Ragnarök.
Note: Potentially could add more stuff throughout her journey.