Seven Knights Idle Adventure: Serena Summon and Star Targets

To get the most value out of Serena in Seven Knights Idle Adventure, stop pulling once you reach either the base unlock (1-star) or the 5-star threshold unless you have already built your primary damage dealers. Serena is a Legendary support hero whose main role is party-wide cooldown reduction and damage amplification. Pushing her to 8-star or 10-star transcendence requires roughly 1.2 million Diamonds, an investment best reserved for competitive players aiming for high leaderboard ranks and guild boss clears.

Recommended Star Milestones and Diamond Goals

Serena requires duplicate copies to advance through star promotions and transcendence tiers. Because her utility comes from cycling team skills, you do not need maximum star investment to gain her core support benefits.

Star Promotion Milestone	Approximate Role and Performance	Recommended Account Type
Base Unlock to 1-Star	Unlocks active cooldown reduction and basic offensive buffs for stage farming.	Free-to-play, early accounts, or players saving for DPS carries
5-Star Threshold	Adds significant health and defense scaling to survive boss AoE attacks.	Mid-game players pushing standard dungeon and boss progression
8-Star to 10-Star Transcendence	Unlocks advanced trait slots, max base stats, and peak combat power via ~1.2M Diamonds.	Late-game accounts, guild bossing, and competitive rank pushers

If you are early in progression or lack high-tier damage carries, stop after obtaining your first copy or reaching 5 stars. Reaching 8 to 10 stars yields dozens of raw banner pulls and hundreds of pity milestone summons, but that 1.2-million Diamond cost will drain resources needed for limited collaborations or Highlord banners.

Serena Kit Mechanics and Team Synergy

Serena amplifies the output of your entire squad rather than dealing carry-level damage herself. Her skills provide two main functions:

Active Skill Cooldown Reduction: Trims seconds off allied skill timers, allowing your main damage dealers and debuffers to cycle their abilities in continuous loops.
Party Damage Buffing: Applies an offensive boost that increases burst damage while dealing minor area-of-effect damage to enemies.

Position Serena in the mid-row or backline. Keeping her away from front-row cleaves ensures she stays alive to cycle her active skill.

DPS Pairings

Serena delivers the highest returns when paired with burst carries such as:

Rachel: Accelerates critical hit cycles and burns.
Lu Bu: Shortens high-damage cooldown windows to bypass boss enrage timers.
Teo: Speeds up broad area skill rotations for rapid stage clears.

Gear Sub-Stats and Trait Priority

A dead support provides zero cooldown reduction. Because Serena's buff uptime depends strictly on her survival, build her defensively across all transcendence trait slots and equipment bonuses.

Evasion: Prevents incoming damage from reaching her in high-tier Nightmare and dungeon stages.
Health Percentage: Protects her against full-screen boss sweeps and backline infiltrators.
Critical Hit Resistance: Minimizes burst spikes from boss critical hits.
Attack Speed: Select this secondary trait only if your frontline tank holds aggro cleanly without Serena taking stray hits, as faster standard attacks speed up her energy gains.

If you decide to spend Diamonds on Serena's featured banner, use the following approach to protect your resources:

Track Pity Intervals: Do not stop pulling just before a guaranteed copy milestone. Rate-up banners offer fixed pity milestones and hero selector tickets that offset poor RNG.
Leverage Summon Rank EXP: High-volume summons increase your overall Summon Rank, which permanently raises baseline pull rates for Legendary heroes on future banners.
Check the Banner Expiration: Ensure you have enough Diamonds to reach your target milestone before the banner leaves, preventing stranded pity progress.