Energy & Skill Points in Honkai: Star Rail Explained
Skill Points are a shared pool for the whole 4-member team, capped at 5: a Basic ATK grants +1 SP, using a Skill costs -1 SP. Energy for the Ultimate is gained from Basic ATKs (+20), Skills (+30, the most efficient way), taking hits (+5 to +25 depending on the attack), or defeating enemies (+10, only +5 in Pure Fiction), and using an Ultimate itself refunds 5 Energy afterward. Each character has their own max Energy threshold (90-140), and a few special cases like Argenti or Yunli can fire their Ultimate at just half that bar.
Skill Points – a shared resource for the whole team
SP (Skill Points) isn't tied to any one character — it's a shared pool for all 4 members of your team, capped at 5. Think of it like the whole team sharing one wallet: spend from it (use a Skill) and it drains, earn into it (Basic ATK) and it fills back up.
Every time a character lands a Basic ATK, the whole team gets +1 SP. On the flip side, the moment anyone uses their Skill, 1 SP gets deducted from that shared pool. Since it's shared, if one character burns through SP too fast, everyone else runs dry and can't use their own Skills.
The community usually splits characters into two camps: "SP-hungry" units (strong Skills you want to spam constantly, usually your main DPS) and "SP-feeders" or neutral units (fine spamming Basic ATK, don't need to Skill every turn). Stack a team full of SP-hungry characters and the pool empties fast — once someone's out of SP, they lose a chunk of damage that turn. A well-balanced team always needs at least 1-2 members willing to Basic ATK to keep feeding SP back into the pool.
Energy and how to fire your Ultimate
Energy is a per-character bar — fill it up and you unlock the Ultimate, your strongest move, which doesn't cost SP but does need a full Energy bar. Each character has a different max Energy threshold, ranging from 90 to 140: lower thresholds mean faster Ultimates, higher thresholds usually mean a stronger payoff to compensate.
Energy comes from several sources: Basic ATK gives +20, using a Skill gives a full +30 (which is why Skills are always the most efficient way to build Energy), getting hit by enemies also grants +5 to +25 depending on how hard the attack lands, and defeating enemies grants +10 Energy (only +5 in Pure Fiction). After you fire the Ultimate, the character also gets 5 Energy refunded, making the next buildup a bit easier.
There's a stat called Energy Regeneration Rate on Relics/Light Cones/Traces — the higher it is, the more Energy you get per source above the base number. For example, +25% Energy Regen turns a Basic ATK's base 20 into 25. A few special characters like Argenti, Evanescia, or Yunli have upgraded Ultimates that can fire at just half the Energy bar, no need to wait for it to fill completely.
What is a rotation, and how do you build one
Rotation is the community's playful term for "a standard loop of turns" that your team repeats throughout the fight, structured so everyone has enough SP to Skill and enough Energy to Ultimate exactly when needed. Think of it like a rehearsed dance routine — once you hit the right beat, you already know who's doing what.
Take a basic rotation for a 4-member team with 1 main DPS, 1 support, and 2 sub-DPS: the main DPS uses their Skill (costs 1 SP, since that's your main damage source), the support Basic ATKs to feed SP back into the pool (instead of their own Skill, if it isn't critical every turn), and the 2 sub-DPS play it by ear — Skill when there's a priority target to burst, Basic ATK otherwise to conserve SP. Loop after loop, the shared SP pool never hits zero, and your main DPS can keep spamming their Skill.
Timing your Ultimate to slot in between other characters' turns is also part of rotation: an Ultimate doesn't consume its own turn, so you can fire it the instant Energy is full, even mid-way through an ally's or enemy's turn (as long as your Speed lines up Energy fill with the right moment). Skilled players usually time a support's Ultimate (buffs, healing) to land right before the main DPS's turn, so the DPS gets to swing with all those buffs stacked before unleashing their biggest hit.
Practical tips: balancing the team and timing your Ultimates
If your team's SP keeps hitting zero mid-fight, don't blame bad luck first — it's usually because you've stacked too many "SP-hungry" characters at once. The quickest fix is swapping one slot for a solid Basic ATK carry, or a character whose kit doesn't demand a Skill every turn.
On the flip side, if SP keeps capping out at 5 while you're still Basic ATKing out of habit, that's wasted resource — it means your team is "feeding" too much. Let your support or sub-DPS use their Skills more freely instead of hoarding, since SP sitting at the cap isn't generating anything extra.
For Ultimates, don't just mash the button the instant Energy fills by reflex — check whether the next turn belongs to your main DPS, or whether a support's buff Ultimate is about to come up, so you can chain Ultimates together for way more value than firing them off separately. In Simulated Universe or Pure Fiction, defeating enemies grants less Energy (+5 instead of +10), so your rotation needs adjusting — don't just copy-paste your main-story combo straight in.
codes.faq_h
Do Skill Points regenerate over time, or only from Basic Attacks?
No, it does not passively refill over time or turns. SP only increases when a character actually performs a Basic ATK (+1 SP to the shared pool each time), so if everyone only uses Skills, the pool will keep draining and never refill on its own.
Why can't I use my Ultimate even though the Energy bar looks almost full?
Because the Ultimate only unlocks once Energy hits that character's exact max threshold (90-140 depending on the unit), and 'almost full' still isn't enough. A few special cases like Argenti, Evanescia, or Yunli are exceptions and can fire their Ultimate early at just half that bar.
How many turns should an ideal rotation be?
There's no fixed number for every team since it depends on Speed and team composition, but the general rule is: the loop must be short enough that the shared SP pool never goes negative, and long enough for your main DPS's Energy to refill in time for the next Ultimate. Players usually think of a rotation as 'however many turns it takes for the main DPS's next Ultimate cycle', not a fixed turn count.
