In Stella Sora, your power doesn’t come from luck alone — it comes from how well you understand your Trekkers. These are not just gacha units; they’re the core of the world’s lore, the forgotten explorers who give up their memories to wish upon ancient Monoliths.
Every Trekker you recruit carries not just stats, but a story — a piece of civilization shaped by danger, loss, and discovery. But when it comes to gameplay, performance varies dramatically. Some Trekkers rise above the rest because of how their skill rotations, elemental synergies, and potential scaling fit into the game’s evolving combat system.
This Stella Sora Tier List takes a deeper look at which Trekkers stand at the top, how their mechanics actually work in practice, and which ones are worth your time and rerolls.
Understanding Trekkers in Stella Sora
Before we jump into rankings, it’s crucial to understand what makes Trekkers different from your typical gacha characters.
Trekkers are individual adventurers who delve into Monoliths — ancient towers filled with monsters and artifacts. Every wish they make inside a Monolith costs them a memory, symbolizing both their courage and tragedy.
From a gameplay perspective, each Trekker can:
Level up to 90, with stat milestones every 10 levels unlocked using materials and Tyrant’s Authorization.
Possess four distinct skills:
- Attack (A): Auto-attack triggered within range
- Main (SK): The primary active ability when controlled
- Support (SP): Ability used when assisting another Trekker
- Ultimate (U): Universal high-cost ability usable in both roles
Gain improved HP, ATK, DEF, Crit Rate, and energy generation through leveling and Potentials.
Unlock Talents and Affinity bonuses through progression and relationships, often adding hidden multipliers or even visual upgrades (like awakened Live2D forms).
Each Trekker belongs to one of three combat archetypes:
- Vanguard – front-line main units with heavy-hitting Main Skills
- Support – back-line sustainers or buffers who empower the team
- Versatile – hybrids that can fill both roles decently
They also belong to unique Factions like Grace Imperium, Post Haste, or Scarlet Sights Media, each reflecting their personality and lore. Freelance Trekkers, like Flora, operate outside these groups — and often stand out for their freedom in builds.
Understanding all this isn’t just lore appreciation — it directly influences why some Trekkers excel in certain setups while others feel inconsistent.
T0 Tier
| Role | Character | Element | Rarity |
|---|---|---|---|
| Main | Gerie | Terra | ★5 |
| Support | Ridge | Terra | ★4 |
| Support | Nazuna | Terra | ★5 |
The Terra trio — Gerie, Ridge, and Nazuna — completely dominate the current meta. Their synergy covers every core need: damage, sustain, and protection.
Gerie acts as a powerful frontline attacker with strong scaling and defensive tools.
Ridge enables long fights through shield uptime and energy support.
Nazuna provides top-tier healing and team-wide protection.
This composition forms the best-performing team in both Ascension and late-game content.
T1 Tier
| Role | Character | Element | Rarity |
|---|---|---|---|
| Main | Minova | Lux | ★5 |
| Support | Laru | Lux | ★4 |
| Main | Nanoha | Ventus | ★5 |
| Support | Ann | Ventus | ★4 |
| Main | Flora | Ignis | ★4 |
| Support | Chixia | Ignis | ★5 |
| Main | Mistique | Umbra | ★5 |
| Support | Cosette | Umbra | ★4 |
| Main | Freesia | Aqua | ★5 |
| Support | Teresa | Aqua | ★4 |
T1 units are flexible and strong — they’re the backbone of many successful team compositions.
Minova and Laru lead Lux setups with balanced offense and support.
Nanoha and Ann define the Ventus core through healing and buff uptime.
Flora and Chixia dominate Ignis burst play.
Mistique and Cosette enable fast Umbra burst rotations.
Freesia and Teresa continue to be the best healing duo across all elements.
While slightly below the Terra trio, these characters remain top performers across all content types.
T2 Tier
| Role | Character | Element | Rarity |
|---|---|---|---|
| Main | Jinglin | Lux | ★4 |
| Support | Canace | Ventus | ★4 |
| Main | Amber | Ignis | ★4 |
| Support | Kasimira | Ignis | ★4 |
| Main | Coronis | Umbra | ★4 |
| Support | Chitose | Aqua | ★5 |
| Main | Shimiao | Aqua | ★4 |
| Support | Iris | Aqua | ★4 |
These characters perform well but depend heavily on specific setups or gear to reach full potential.
Jinglin and Canace are decent early supports.
Amber and Kasimira provide usable Ignis coverage for beginners.
Chitose, Shimiao, and Iris can sustain teams early on but lack endgame output.
They’re fine investments early, but generally get replaced later by higher-tier options.
T3 Tier
| Role | Character | Element | Rarity |
|---|---|---|---|
| Main | Tilia | Lux | ★4 |
| Support | Amber | Ignis | ★4 |
| Main | Shimiao | Aqua | ★4 |
| Support | Kasimira | Ignis | ★4 |
| Main | Coronis | Umbra | ★4 |
These characters are functional for early progression but lack the power or scaling to compete in higher content.
They are useful for filling elemental gaps early on but quickly become redundant once stronger Trekkers are unlocked.
Element Ranking
| Rank | Element | Highlights |
|---|---|---|
| 1. Terra | Gerie, Ridge, Nazuna — unmatched synergy and balance. | |
| 2. Ignis | Flora and Chixia lead the DPS meta. | |
| 3. Aqua | Freesia and Teresa remain the best sustain options. | |
| 4. Ventus | Nanoha and Ann provide strong buff support. | |
| 5. Lux | Balanced but less explosive. | |
| 6. Umbra | Burst potential but heavily setup-dependent. |
Reroll Guide – How to Start Strong
Rerolling in Stella Sora isn’t just about chasing a 5-star portrait — it’s about locking in early stability and synergy.
Start with the Featured Trekker Banner and aim for Chitose (Aqua). She’s not top-tier long-term, but she ensures your early fights are smooth. If you don’t get her early, reset and try again — rerolling takes minutes, rebuilding takes hours.
Next, shift to the Beginner Banner (Opening Act) and go for Gerie or Nazuna, both from the Terra element. Together, they form the strongest synergy pair in the game right now. If you pull one, use your 5★ Trekker Selector (Stellar Resume Pack) for the other.
If you’re unlucky with Terra rolls, fallback options like Nanoha (Ventus) and Freesia (Aqua) will carry you comfortably through the campaign.
What separates Stella Sora from other gacha RPGs is how much its world and mechanics intertwine. Every Trekker isn’t just a unit — they’re a person with a background, a faction, and a purpose. You feel their risk and resilience in both their lore and playstyle.
The current meta favors Ignis and Terra compositions, but the diversity in playstyles means you can succeed with any element if you understand your Trekkers’ roles.
If you’re rerolling, the ideal start is Chitose + Gerie + Nazuna, with Freesia or Teresa as support anchors. For advanced players who enjoy mastering rotations and timing, Flora remains the ultimate test of skill and payoff — the kind of Trekker that rewards precision over power creep.