Phainon is the newest playable character physical element character in Honkai Star Rail. And due to a unique kit where he solos himself, Phainon would need a team that can provide sustainability during those solo moments. For that reason, here are the best possible builds for Phainon in Star Rail.
Version 3.4 "For the Sun is Set to Die" Update
ā Honkai: Star Rail (@honkaistarrail) July 1, 2025
Let me tell a tale of a swarm of nymphs that chase the scorching dawn. The Paean of Era Nova... For they rose from the gate and reached the throne, for they walked through the petals in the land of repose, yet fell finally at dawn's⦠pic.twitter.com/7dgewP8fJS
Due to a unique kit, Phainon's ultimate gets charged when he is being targeted by his enemies or his allies' abilities. For that reason, the best Relics set for Phainon is the Wavestrider Captain set. This set is the best option for Phainon as it can boost his Crit DMG by 16% and ATK by 48%.
Apart from this relic set, players can also use Scholar Lost in Erudition which can help Phainon to maximize his Skill DMG output. If compared, the Scholar Lost in Erudition performs slightly less than the Wavestrider Captain set. So the players have two solid relic set options that they can use to build Ohainon.
Now comes the Planar Ornament sets, but for Phainon, multiple options work seamlessly along his kit. The best Planar Ornament set is known as the Arcadia of Woven Dreams, which can provide DMG buff for Phainon when he is not alongside his allies, and gues what during his Ultimate Phainon enters a territory where he solos his opponent.
Apart from that set, Phainon can also be built using Rutilant Arena or Bone Collection's Serene Demesna. Rutilant Arena is an excellent Planar Ornament as it can boost the wearer's Skill DMG and Crit Rate, making sure the character hits hard. Bone Collection's Serene Demesna can increase the Crit DMG of the user if their HP level is above 5000, which, in this case, is quite possible during his Ultimate.
Just like other characters build, players should first focus on securing the 1:2 Crit ratio which ensures that the DPS character they are building will make an impact on the battlefield. Once that target is secured then the players can go for the others like ATK%, SPD, Physical DMG, and more.
Best Light Cones for Phainon in Star Rail 3.4v
There are multiple Destruction Light Cones available in-game but the best option for Phainon is Thus Burns the Dawn. This is his signature Light Cone which can boost his base SPD stat and can help him to ignore a portion of his foe's DEF.
Light Cone Preview | Version 3.4 "For the Sun is Set to Die"
ā Honkai: Star Rail (@honkaistarrail) June 25, 2025
Hey, Trailblazers! Let's have a peek at the Light Cone previews for Version 3.4 "For the Sun is Set to Die"~
Learn More: https://t.co/SmIf2limo0#HonkaiStarRail pic.twitter.com/EIs3HFP6I2
Other than his limited Signature LightCone, players can also use some of the F2P options like Fall of an Aeon or Under the Sky. These Light Cones are easier to collect and can provide a decent number of buffs, which work well with his kit. If the player can invest a bit more, then they can go for the Battle Pass Light Cone known as A Trail of Bygone Blood, this Light Cone can provide strong Crit Rate and Skill DMG Boost.
Some other 5-star Light Cones that can be paired with Phainon are as follows:
- Brighter Than the Sun
- The Unreachable Side
- I Shall Be My Own Sword
- Something Irreplaceable