Himeko • Nova

Deals Fire DMG equal to 50–110% of Nova's ATK to a single enemy. Filler action for turns where you are banking Skill Points and her Ultimate is not ready. It exists; it is fine; you will rarely think about it.

A pure support button. Immediately recovers all Assist Skill uses and grants Nova "Navigator's Semaphore" for 3 turns: while it holds, all allies deal 10–22% more DMG and 1 Assist Skill use is automatically recovered at the start of every turn. This is what keeps the Assist economy flowing — the Skill deals no damage itself, but it refuels the ability that does. Her Technique even auto-casts it at the start of each wave.

Costs 150 energy. Nova takes direct control of the Starblazer, which fires up to 6 "Hyperluminal Particle Beam" volleys — each an AoE hit that generates 1 Source Energy (max 3). Source Energy can be spent mid-channel on "Orbital Annihilation Pulse", dealing up to 381–838.2% ATK Fire DMG to one designated enemy plus up to 126–277.2% ATK to everything else. When the volleys run out, the Pulse fires automatically, followed by a Final Hit of 3 bounces at 40–88% ATK each. Critically, unused volleys carry across waves — if everything dies mid-Ultimate, the Starblazer holds its remaining shots for the next wave instead of wasting them.

While Nova is on the field, the Territory "Starblazer Visioscape" deploys automatically, summoning the Starblazer and granting every ally 1 Assist Skill use. Using an Assist counts as Nova using her Skill. Nova herself gains 10–22% All-Type RES PEN and 40–88% CRIT DMG, and her attacks ignore Weakness Types when reducing Toughness, triggering Fire Weakness Break on any enemy. Allies other than Nova regenerate 4 energy each time they use their Assist. This is why she works into any enemy lineup — she never needs a Fire weakness to break.

The team-wide extra ability. Any ally can spend their turn to call the Starblazer, which attacks in an Extra Turn: Fire DMG equal to 80–176% of Nova's ATK to all enemies plus 3 bounces at 12–26.4% each. When Nova launches it herself, it upgrades to 100–220% AoE with 4 bounces at 18–34.8%. All of it scales off Nova's stats, not the user's — a support spending their turn here converts it into main-DPS damage. If the user is a Trailblaze Companion other than Nova, she additionally enters one of the two Companion Protocol modes below. Free Assists granted by those modes cap at 2 per battle, resetting when Nova uses her Ultimate.

Triggered when the Assist user is the Trailblazer, Dan Heng, Dan Heng • Imbibitor Lunae, Dan Heng • Permansor Terrae, or Sunday. Nova's DMG increases by 50–110% and her Ultimate DMG by an additional 50–110%. Every 2 teammate Ultimates, she launches a free Assist Skill at no cost. This is the single-target hypercarry mode: everything funnels into Nova's own Pulse damage.

Triggered when the Assist user is March 7th, Evernight, Welt, or base Himeko. All allies gain 50–110% CRIT DMG, plus an additional 50–110% CRIT DMG on Skill damage. Every enemy target hit by allies grants 1 Charge; at 9 Charges, Nova fires a free Assist Skill. This is the AoE and multi-DPS mode — the teamwide CRIT DMG buff is enormous, and hit-heavy teams charge free Assists constantly. The two Protocols are mutually exclusive, but switching preserves the accumulated charge.

Having Nova in the team raises the max Technique Points by 3. Using her Technique costs 2 points, enters a 30-second "Cruise" state, and attacks all enemies in range — Normal enemies are defeated instantly without entering combat, refunding the points if nothing is hit. After entering combat, she automatically uses her Skill at the start of every wave, meaning Navigator's Semaphore and a full Assist refill are active from turn one of each wave without spending an action.