F91 & F90 Unit Strength Analysis - SD Gundam Eternal

SD Gundam G Generation Eternal: F91 & F90 dual unit strength breakdown! Can F91's "Initial Damage Nullification" make up for its 4-range EX? Is F90's Escape mechanic worth investing in? LDShop dives deep into stats, skills, tags, and pilot synergy with practical pull advice to help you spend diamonds wisely.

This week's update has arrived right on schedule, bringing us the banner F91 fans have been waiting for: Gundam F91 (Twin V.S.B.R. Equipment) and Gundam F90 (A.D.S. Hybrid Type). The biggest question on everyone's mind is just how strong these two new units really are,and whether they're worth your hard-earned diamonds. LDShop breaks down their stats, skill mechanics, tag synergy, and pilot compatibility to give you the most detailed, practical pull recommendations.

 

Gundam F91 (Twin V.S.B.R. Equipment)

Let's start with the F91. The stat that instantly grabs your attention is its massive 15185 Attack,one of the top three among all UR attackers and enough to overshadow quite a few older limited units.

Unit Strength Deep Dive

Stats & Skills: A High-Risk, High-Reward Trade-off

The F91's EX weapon has a base power of 7,080 and a range of 4. That 4-range is its biggest weakness: in a meta flooded with 5-range weapons, 4-range means you're guaranteed to eat a counterattack every time you fire.

Now let's look at its passives: you get +15% Attack when HP is 75% or above, plus a flat +15% Attack, for a total of 30% extra Attack,one of the highest boosts among current attackers. But maintaining that HP threshold is tricky because the F91's base HP is naturally on the low side. Once your HP drops, your Attack plummets to around 13,433, and your damage output falls off a cliff.

Core Mechanic:

The design philosophy here is crystal clear: use a revolutionary survival skill to cover for the short range. "Initial Damage Nullification" is an extremely rare complete immunity effect in the game. Testing confirms it can block map attacks, EX weapons, and even the first hit from support attacks, allowing the F91 to charge fearlessly into the enemy formation on turn one and perfectly maintain that 75% HP passive.

This skill only triggers once per battle. After it's gone, the F91 reverts to a fragile attacker with zero self-protection and only 4-range. In Master League PvP, this makes it a "one-shot wonder",you enter unscathed, unload your burst, and then hope for the best. In longer PvE fights, once your HP slips below 75%, your damage drops dramatically, forcing you to rely heavily on the pilot's healing skills just to stay functional.

It's worth mentioning that while it does have a MAP weapon, the pattern is a bizarre triangle—wide in front, narrow in back,making it practically useless for clearing mobs. You can safely ignore it.

Tags & Positioning:

The F91 carries "Tough as Nails," "Test Type," "Psycommu," and "Tenacious." Tough as Nails and Test Type do have 44% bonus limited warships, but neither is a dominant meta tag right now. Tenacious has been steadily reinforced, but with Ace Unit and One-Shot Killer teams ruling the meta, the F91simply can't compete for the main carry slot against monsters like Strike Freedom or DX. It's better suited as a secondary damage dealer in Tough as Nails or Test Type teams, or as a tactical surprise for hit-and-run strategies.

Pilot Deep Dive: Seabook Arno

If there's one must-pull reason on this banner, it's the pilot: Seabook Arno is by far the biggest prize.

Rarity & Base Stats:

Seabook is one of the game's exceptionally rare triple-action pilots. Having three actions per turn is a game-changer for repositioning and chaining EX skills. His base Shooting stat of 748 looks underwhelming by modern standards, but that's only on the surface.

Skill Kit Breakdown:

What makes Seabook truly formidable is that he's the first triple-action pilot with a built-in extra damage boost:

EX Ability: When HP is 75% or above, damage dealt +15% and Shooting +15%. This is locked to the F91 series tag, giving you both the extra action and extra damage—a privilege no previous triple-action pilot has ever had.

Skill 1: HP Repair (Light), costing only 3 SP. Extremely flexible and helps maintain that crucial 75% HP line.

Skill 2: Sway, costing 7 SP and usable up to twice. Combined with the unit's "Initial Damage Nullification," you can theoretically pull off three damage-free actions.

Skill 3: Shooting +25%.

In manual PvE stages, the combination of healing, double Sway, and unit invincibility gives him phenomenal survivability and sustained damage output in high-difficulty content.

Tactical Value & Limitations:

Seabook's limitations are equally clear: he lacks an "Attack Burst" type skill, so his instant burst in low-defense stages isn't quite on the level of Setsuna or Shinn. And the triple-action is locked to the F91 series, which limits his versatility as a plug-and-play pilot. But for any F91-series unit, he's the irreplaceable, complete package. In tough PvE scenarios where you need to balance survival and sustained damage, his value is immeasurable.

Gundam F91 Pull Recommendations

Meta Chasers: The F91 itself has real flaws,short range and heavy HP reliance,but at max limit break, its burst ceiling is still impressive. If you're building a Test Type, Tough as Nails, or Tenacious team, it's a solid secondary damage option. Seabook's specialized value also justifies the investment.

☞ SD Gundam G Generation Eternal UR Tier List

F2P / Low Spenders: If your resources are tight and you already have strong attackers like Strike Freedom or Zeta, think carefully. This unit is very dupe-dependent; at low limit breaks, the HP weakness is magnified, and you won't get the full limited-unit experience. Rather than a half-effective F91, you're better off saving your diamonds for a more universally flexible unit.

Fans & Whales: Sure, the unit has flaws, but style is eternal! And Seabook's exclusive triple-action damage boost is absolutely worth your resources. For those aiming for high limit breaks, a maxed F91 + Seabook combo can execute dangerously effective one-turn-kill tactics in Master League.

Gundam F90 (A.D.S. Hybrid Type)

If the F91 is a hyper-specialized attacker, then the F90 is a strange case—a unit whose true value rests entirely on its pilot. The unit itself is unremarkable, but the versatility and strength of its pilot, Def Stallion, make this one of the most worthwhile banners in recent memory.

Unit Strength Deep Dive

Stats & Role: A Decent Supporter with Average Appeal

The F90's base Attack is only 9,595, which is on the low side for a UR supporter,it barely breaks 10,000 once you hit Over-Attack. However, its HP is a solid 105,448 (third-highest among all supporters), it has full terrain adaptability, and 5 Move. Overall, its base stats are above average for a supporter. No shield, but it does feature a unique "Escape" mechanism.

Core Mechanic: Escape Tactics & 5-Range Support

The weapon layout is fairly standard:

EX Weapon: Unconditional 1-5 range with 35% Defense Down. Five-range is quite rare among supporters, and Defense Down is universally useful.

MAP Weapon: Fan-shaped area, power 4,560, no debuff attached, nothing special.

The F90's real standout feature is its Escape Mechanism: when destroyed, it switches into a weakened version of the F90 and keeps fighting. This downgraded version has only 4 Move and gimped weapons, it's basically a punching bag. In Master League, however, this can be used to interrupt enemy link attacks, throwing off the opponent's rhythm, which has some tactical value. One important warning: after ejecting, it loses its atmospheric terrain adaptation; if you get shot down near the map edge, it might simply crash.

Tags & Potential:

The F90 carries "Unstoppable," "Test Type," and "Shippu Jinrai." Shippu Jinrai already has the Ptolemy II as a 44% bonus warship, and Unstoppable also has solid ship support,its tag compatibility is actually the best among the three recent units. But as a supporter, its support capabilities are honestly not outstanding: 35% Defense Down and 25% Physical Damage Taken Up feel a bit thin compared to top-tier supporters.

Pilot Deep Dive: Def Stallion

If there's one must-pull on this banner, it's absolutely not the F90 unit itself, but its dedicated pilot: Def Stallion.

Base Stats & Skills:

Def's base Shooting is 790, reaching 922 after activating his skill. For a support pilot, it's solidly above average. His skill set includes Move +1, MP Up, Shooting Boost, and the passive "Double Support Attack." It's a balanced kit, though he lacks a universal "Attack Burst," so his instant burst is slightly lower.

Core Value: The Perfect EFSF Starter Engine

Def's EX ability is where the real magic lies:

Turn-1 Over-Attack: When piloting an Earth Federation Forces (EFSF) unit, starts with +6 MP. Combined with his own active MP Up skill, he can enter Over-Attack state on the very first turn. No warm-up, no waiting,this is one of the smoothest opener pilots in the entire game.

Unconditional 15% Damage Up: Also tied to the EFSF tag: when piloting an EFSF unit, damage dealt +15%. The EFSF umbrella covers a massive range,making this top-tier versatility. Whether in PvE or PvP, this essentially gives all your EFSF units a free damage engine.

Reliable Support Damage: With built-in "Double Support Attack" and "Support Attack Up," his damage contribution from the support slot is stable and reliable. Tests in Master League show that his support attacks on units like the Phenex can even surpass some veteran support pilots.

Tactical Value & Limitations:

Def's main weakness is his low survivability: only 555 Reaction, with no evasion or damage reduction skills, so his staying power in prolonged fights is somewhat lacking. But for short, decisive battles and rush comps, his combination of turn-1 Over-Attack and universal damage boost is currently one of the most cost-effective setups available. Think of him as a "opener amplifier," not a "marathon all-rounder."

Gundam F90 Pull Recommendations

Meta Chasers: Def Stallion's value far outweighs the F90 unit itself. If you're lacking top-tier support pilots, or if your main squad revolves around EFSF units, this banner is absolutely worth it. Getting Def is like installing a free turn-1 damage engine onto your Hi-ν or Ex-S.

F2P / Low Spenders: If resources are limited, aim for Def. Pull the F90 unit just to get the pilot, then stop. The best return on your investment is taking Def and slotting him into your other strong EFSF units.

Fans & Whales: The F90's escape mechanic has some fun tactical use in Master League, but the real treasure remains Def Stallion. Focus your investment on building him up as the dedicated support core for your EFSF squad.

 

Summary

In this F91/F90 banner, the F91 shines as a glass cannon with a top-tier Attack panel and the revolutionary "Initial Damage Nullification" skill, but its true core value lies in its pilot, Seabook Arno,the first triple-action shooting expert with a built-in damage boost, capable of delivering the ultimate in both survival and damage for F91-series units. Meanwhile, the F90 is a tactical wildcard with its unique escape mechanism, but the real hidden treasure of its banner is Def Stallion. This EFSF mercenary king can give any Federation unit turn-1 Over-Attack and unconditional bonus damage, with a level of versatility that's basically unmatched in the current meta.

Whether you're chasing the F91's glass cannon burst or Def's universal EFSF engine, a solid stash of diamonds is your strongest weapon on the battlefield. LDShop is offering safe, fast, and affordable SD Gundam top-up services to help you easily secure your favorite units and pilots. Plan your diamonds smart, pull responsibly, and may you soon build the Gundam squad of your dreams.