Start by upgrading Narrative Gundam C-Packs for the most universal value, then invest in Casval Gundam or Gundam Delta Kai if you need a strong damage dealer. Support ultimates typically reach their peak efficiency at just one upgrade, while several units with restrictive roles, terrain limits, or underwhelming debuffs are better saved for later.
Pick Narrative Gundam C-Packs first
Make Narrative Gundam C-Packs your priority if you want the strongest all-around investment
- Narrative Gundam C-Packs (Awakened) is named as the best ultimate unit to upgrade first.
- It offers excellent versatility: EFSF access means wide pilot compatibility, making it easy to fit most rosters.
- Its level 6 defense down debuff and strong weapon range make it valuable both for damage and team support.
- The NTD level 2 ability provides a substantial defensive boost compared to the standard level 1, reducing incoming damage from beam range weapons and special weapon awaken attacks.
- It is especially useful in Master League and story stages with tough enemy tanks.
Narrative Gundam C-Packs (Awakened) is displayed on the Unit Data screen with its abilities and unit stats visible. — Vivi Covivid
Choose support units for the fastest value
Support ultimates are usually the best value for early investment, since their debuffs pay off immediately and do not require full upgrades for maximum effect. Many support units only need their first ultimate upgrade to provide their highest debuff, so if you only need the debuff, stop upgrading and move resources elsewhere.
The development model unit info screen shows Zeta Gundam III P2 Type with required materials and an obtain button. — Vivi Covivid
Upgrade Casval Gundam or Gundam Delta Kai next
If you want a main attacker after upgrading Narrative Gundam C-Packs, choose between Casval Gundam and Gundam Delta Kai. Both have advantages, but the best pick depends on your account needs.
| Unit | Tag Coverage | Stage Use | Investment Value | Pilot Flexibility |
|---|---|---|---|---|
| Casval Gundam | Protagonist, UC Series, Zeon, Gundam | Many Eternal Road, story stages | High at one upgrade, excellent early utility | Broad |
| Gundam Delta Kai | EFSF, Psycho Ace | PvE | Best if fully upgraded for strongest damage | Broad |
| Aphrodite / Balfagore | Melee-focused | PvE only, niche use | Moderate to high damage, but low flexibility | Limited |
Casval's Gundam is open on the unit data screen with its stats, tags, and upgrade controls visible. — Vivi Covivid
- Casval Gundam is useful across a wide range of stages and especially for UC series content.
Leave weaker attackers and niche units for later
The upgrade menu shows multiple unit cards, including Balfagore with its attacker role icon visible. — Vivi Covivid
Know which durability units are actually worth it
| Unit | Unique Debuff | Stage Suitability | Tank Value | Pilot Tags |
|---|---|---|---|---|
| Hyperion Gundam | Range damage reduction (broadly applies) | General use, rivals, SEED stages | Strong tank value due to reduction effect | Omni, rivals |
| Gundam Astray Gold Frame Amaterasu | Defense up | SEED Destiny enemies, Master League | Strong vs SEED units, solid tankiness | Orb, tough as nails |
| Psycho Gundam | Attack down at short range | Niche, outdated | Weakest durability investment | Limited |
Super Hyperion Gundam is displayed on the Unit Data screen with its upgrade and stat panels visible. — Vivi Covivid
- Hyperion Gundam offers universal damage reduction for all range weapons and stands out as a strong tank.
- Gundam Astray Gold Frame Amaterasu counters SEED Destiny units and brings rare debuffs but is more situational.
- Psycho Gundam is not recommended for ultimate investment.
Skip the obvious traps and low-return upgrades
Gundam Astray Gold Frame Amaterasu appears on the unit data screen with its tank role, stats, weapons, and abilities visible. — Vivi Covivid
Use the road map reveal before spending your last materials
Also worth knowing
- Casval Gundam remains valuable for UC story and history stages.
- Casval Gundam gets extra mileage from Red and Zeon tags when paired with a matching buff unit.
- Narrative Gundam C-Packs is a strong early investment for pushing Master League and meeting team requirements.
- Ultimate materials are scarce, so some players may want to save for future units instead of spending broadly.
- Prioritizing units with powerful debuffs at only one upgrade improves material efficiency.
- Future main-stage units may shift upgrade priorities, so keeping some resources in reserve is smart.
FAQ
Which ultimate unit should I upgrade first in SD Gundam G Generation ETERNAL?
The safest first upgrade is Narrative Gundam C-Packs, as it delivers universal value and fits many pilots.
Is the Narrative Gundam C-Packs the best ultimate unit to invest in first?
Yes, the creator names Narrative Gundam C-Packs (Awakened) as the best ultimate unit to upgrade first.
Do support ultimate units give enough value at just one upgrade?
Yes, support ultimates typically reach their highest debuff at the first ultimate upgrade, so upgrading them once is usually sufficient.
Which ultimate units does the creator say to avoid upgrading?
The creator advises avoiding Gundam Aquarius, Beta Aesir, bulky space-only supports with short-range debuffs, and Psycho Gundam.
When should I stop upgrading a support unit if I only want the debuff?
Stop after the first upgrade; the debuff does not improve further at higher upgrade levels.
Should I save materials for future main stages or spend them now?
The creator recommends saving at least some materials for new main-stage ultimates expected in future roadmap reveals.
Sources
Screenshots on this page are frames from the videos below, used to illustrate the steps they describe. All rights remain with their creators.
- THE ULTIMATE ULTIMATE GUIDE! - SD Gundam G Generation Eternal — Vivi Covivid, June 20, 2026