SSRWarriorHeavy

Rachel

October 8, 2026 · 4 min read

SSR Heavy Warrior with Heavy Rifle and Grenadier. 16,031 attack at Lv.150/5★. Raise her for burst, not a tank seat.

16,031 attack, fifth among the 12 SSRs.
Grenadier reaches 8 attacks at 4★ and 370.2475% ATK at 5★.
Caliber Modification is 28.15% combat ATK and works in PvP.

rachel
ssr
warrior
heavy
heavy rifle
grenadier
caliber modification
wasteland wanderer

Skills

Skill 1

Heavy Rifle

Auto AttackCD: 1.85sLv.1 required

0★: Fires heavy ammunition to attack enemies, dealing damage equal to 136.36% ATK.

5★: Fires heavy ammunition to attack enemies, dealing damage equal to 340.9% ATK.

The 1.85s auto is the damage between grenade volleys. Slower than Celeste’s 1.2s rockets, higher % ATK per shot. It does not buff allies.

Star upgrades
1★	Deals 25% more damage.
2★	Bonus damage is increased to 40%.
3★	Bonus damage is increased to 75%.
4★	Bonus damage is increased to 105%.
5★	Bonus damage is increased to 155%.

Skill 2

Grenadier

Active SkillCD: 9.2sLv.5 required

0★: Throws grenades consecutively to attack random enemies 4 times, dealing damage equal to 211.57% ATK.

5★: Throws grenades consecutively to attack random enemies 4 times, dealing damage equal to 370.2475% ATK.

This is the burst. Random targets. Stars add hits (6 at 2★, 8 at 4★) and bonus damage (25% / 45% / 70%), and the printed 5★ line is already 370.2475% ATK. Raise this first if you are starring her for damage.

Star upgrades
1★	Deals 25% more damage.
2★	Increases the number of attacks to 6.
3★	Bonus damage is increased to 45%.
4★	Increases the number of attacks to 8.
5★	Bonus damage is increased to 70%.

Skill 3

Caliber Modification

Passive SkillLv.21 required

0★: In combat, increases ATK by 28.15%.

5★: In combat, increases ATK by 28.15%.

Combat ATK on the fifth SSR attack column. The printed line stays 28.15% from 0★ to 5★ at skill level 30; the star list is extra ATK on top. Personal. It does not care about monsters or players.

Star upgrades
1★	Increases ATK by 3%.
2★	Increases bonus effect to 6%.
3★	Increases bonus effect to 9%.
4★	Increases bonus effect to 12%.
5★	Increases bonus effect to 15%.

Skill 4

Wasteland Wanderer

Ace SkillLv.31 required

0★: Increases ATK, DEF, and HP by 10%.

5★: Increases ATK, DEF, and HP by 10%.

Personal capstone. Unlocks at level 31 and 4★. The printed line does not change from 0★ to 5★. Unlock it for the 10% ATK, DEF, and HP.

Best for / not for

Pick her in Heavy Warrior marches that want a random multi-hit on 16,031 attack. Grenadier scales to 8 hits at 4★ and 370.2475% ATK at 5★. Caliber Modification is 28.15% combat ATK and runs in PvP.

Skip her as a Heavy tank. 289,337 HP is eighth of 12, far under Zara (622,509). Skip her if you needed the attack lead: Celeste (18,545), Lee Yu (16,518), and Logan (16,195) sit above her. No ally buff in this kit.

Team

Wasteland Wanderer is personal. It does not buff the row.

Investment

Skill books are the sum of the per-level costs in the game data. Use the hero calculator for EXP and fragments.

Skill	Books to Lv.30	Books to Lv.40
Heavy Rifle	199,500	199,500
Grenadier	199,500	199,500
Caliber Modification	199,500	199,500
Wasteland Wanderer	199,500	199,500

Grenadier first: extra hits at 2★ and 4★ plus 370.2475% at 5★. Heavy Rifle second: the 1.85s auto has to keep up. Caliber Modification third: 28.15% combat ATK. Wasteland Wanderer last, at level 31 and 4★. Both book columns read 199,500.

Expert breakdown

Overall evaluation

Best skill priority

Upgrade in this order

1
Grenadier8 hits at 4★ and 370.2475% ATK at 5★.
2
Heavy Rifle1.85s damage between volleys.
3
Caliber Modification28.15% combat ATK.
4
Wasteland Wanderer10% ATK, DEF, and HP at level 31 and 4★.

Strengths

16,031 attack, fifth among the 12 SSRs.
Grenadier reaches 8 attacks at 4★ and 370.2475% ATK at 5★.
Caliber Modification is 28.15% combat ATK and works in PvP.

Weaknesses

Power is 10th of 12 SSRs at this sample: 532,488.
289,337 HP will not hold a Heavy front against Zara (622,509).

Best role

PvPGoodGood. Fifth SSR attack; Caliber still runs.
BossGoodGood. Rifle and grenades still fire; no monster-only line to lose.
ArenaGoodGood. Same as PvP.
CampaignFairFair. Damage is real; she has no monster passive.
SupportPoorPoor. Nothing for allies.

Verdict

Raise Rachel when the march is Heavy Warrior and you want Grenadier on 16,031 attack. Star Grenadier through 4★ for eight hits, take Wasteland Wanderer at 31 and 4★ for the 10% stats, and keep her off the tank tile. Do not raise her to beat Celeste. Do not raise her because Heavy camp sounds like HP.