Master Archer: Coming from an era of endless wars, Kikyō has fully mastered the art of archery. She can easily and swiftly shoot enemies from long or short distances and has the uncanny ability to strike demons from much longer and greater distances. Kikyo can even accurately hit Inuyasha near the heart with one arrow despite being fatally injured which would normally impede such an activity even when Inuyasha was moving at high-speed through the air. Kikyo was able to teach her younger sister, Kaede, the skill of archery that led to her being a powerful priestess and archer herself.

Master Healer: Kikyō is an extremely skilled and experienced healer and is able to treat and save even those on the brink of death. She is able to see the beings from the Netherworld and can dispose of them with a single touch by purifying them.

Immense Spiritual Power: Kikyō is a highly respected priestess with tremendous skills and powers. Her sister Kaede noted that Kikyō is exceptionally powerful even for a priestess. She was one of the only people Naraku was scared of, going to extreme lengths to kill Kikyō. She is able to erect unusually strong and powerful spiritual shields and perform several mystic spells or enchantments that can be used for both offensive and defensive purposes. Likewise, Kikyō has the ability to break seals, shields, barriers, spells, and detect fragments of the Shikon Jewel wherever they may be. Kikyō can also combine Shikon jewel shards into one shard. Her spiritual powers manifest as a light lavender glow of light in color though it is light blue on a few occasions.

Immense Purification: These powers and abilities come in a variety of different forms when used by Kikyō. When she was resurrected, she used her purification powers to strike Urasue as well as Inuyasha with light purple-colored glowing bolts of purification. These powers killed Urasue and injured Inuyasha during this occasion along with being able to temporarily purify Tessaiga itself. On another occasion, when Kikyō and Kagome were trapped alone in a cave together, Kikyō used these abilities to create a large glowing orb of light purple-colored light from her hands in order to destroy insects that were attacking Kagome. She can also purify the Shikon Jewel Shards by just touching them. Her purification are as such that the light imbued into Kohaku's Shikon Jewel shard is still effective enough to threaten Naraku despite having already died and only the likes of Magatsuhi (the evil of the Shikon Jewel) could corrupt it.

Spiritual Immobilization: Kikyō is able to stun someone and make them invisible to everyone else but her, she does this by touching someone with two of her index fingers. She used this skill on Kagome.

Mayose: The Mayose is a high-level mystical spell cast on a twig that can only be performed by a highly skilled and experienced priestess with exceedingly strong and powerful spiritual power and knowledge. The twig grows into a huge tree that reaches the clouds once it is enchanted with a special spell. It is used to lure demons of a specified type and purify them when the demons climb to the top.

Shikigami Creation: She is able to create human-like Shikigami that she uses to perform various tasks for her, which she used most when she hid herself; these specific Shikigami are called Kochō and Asuka. Another Shikigami Kikyō had created was Saint Hijiri, who much like herself, contained immense spiritual power. She used Hijiri as a distraction so that she could take time to fully recover from the miasma-filled wounds Naraku had inflicted upon her at Mount Hakurei. Kochō and Asuka originally stayed by Hijiri's side, but after St. Hijiri was destroyed byKagura, they went on to help Kikyō directly.

Resurrection: Kikyo's residual spiritual powers that were imbued into Kohaku's Shikon Jewel shard was capable of resurrecting him when Naraku took it back despite Sesshomaru's mother stating that even Tenseiga couldn't revive him when his life is sustained by the shard.

Enhanced Eyesight: Kikyō is able to see things that are or may seem invisible to the human eye.

Immense Endurance: Despite being fatally injured by Naraku disguised as Inuyasha, Kikyo was able to muster the strength in order to seal Inuyasha before ultimately dying in spite of having to walk a considerable distance with the wounds being open and bleeding profusely. When resurrected by Urasue, Kikyo returned in her injured state but was still able to put up a considerable fight against Inuyasha despite bleeding profusely from her open wounds.

Taken from here.