S-Iwanagahime is a 5-Star Greatsword weapon in Kaiju No. 8 The Game (K8 The Game). This guide covers its stats, effect, and recommended characters.
Table of Contents
S-Iwanagahime Stats & Effect

| Rarity | 5★ |
|---|---|
| Weapon Type | Greatsword |
Effect
| CRIT Rate (%) +16% - After the equipped unit activates Ultimate or Follow-Up Skill, applies ATK +27% (3 turn(s)) to the equipped unit. |
Base Stats
| HP | ATK | DEF |
|---|---|---|
| 47 | 33 | 26 |
Recommended Characters for S-Iwanagahime
Best Character Is Kikoru (Evolving Talent)
| Character | Evaluation |
|---|---|
Kikoru Shinomiya | - Attacker with 2 Attributes: Slash/Blunt - Performs Extra Attack based on the number of Wrath stacks - Can apply bonus damage and increase her own bonus damage - Has DMG Taken Reduction for all allies |
The best character for S-Iwanagahime is Kikoru Shinomiya (Evolving Talent). Along with increasing her CRIT Rate, the weapon can also conditionally boost her ATK, helping improve her overall damage output.
How to Get S-Iwanagahime
How to Get
- 武器支給ボックスⅢ
Available from the Defense Force Pass
S-Iwanagahime can be obtained from the Weapon Supply Box III at Defense Force Pass Premium Level 30.
Is the Defense Force Premium Pass Worth It?Kaiju 8 The Game Related Guides

5-Star Weapons
4-Star Weapons
| Obtained from Gacha | |||
|---|---|---|---|
AR-Lynx 75 | PS-Dobermann 52 | Ax-Mantis 21 | AR-Narwhal 59 |
AR-Octopus 58 | AR-Panther 33 | AR-Honeybee 84 | T-Tiger 15 |
SW-Fox 48 | SW-Crow 93 | GS-Orca 70 | GG-Squirrel 02 |
Fs-Grizzly 83 | AR-Squid 62 | Lc-Rhinoceros 01 | HG-Xmas25 |
S-Silky Shark 13 | HM-Holdem | AW-Scopone | HM-Canasta |
SB-Stegosaurus 38 | RF-Judith | ||
| Obtained from Beginner's Guide | |||
HG-Beetle 15 | |||
| Obtained from Events | |||
AR-Hound 64 | Fs-Gaur 28 | Ax‐Bison 91 | AR-Allosaurus 77 |