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Flash Grenade

Fire a bouncing Grenade that unleashes a Blinding, Stunning explosion when its fuse expires.

AttackAoEProjectileGrenade
Tier
S

Top-tier — strong mechanics, versatile, and highly efficient in the current meta.

Cost
7 mana
Cast Time
1s
Crit Chance
Max Level
20
Cooldown
None

Gem Effects

Detonation Time is 0.85 seconds

Blinds Enemies

500% more Stun buildup

Explosion radius is (2.6-3.3) metres

Requirements

Weapons:Crossbow
At Level 20:86 Strength86 Dexterity

Best Support Gems for Flash Grenade

Ranked by synergy — the game won't tell you which combo deals the most damage

How to Use Flash Grenade Effectively

Practical tips you won't find on the tooltip

🌊

AoE Clearing

Invest in Area of Effect to cover more ground. Excellent for map clearing and handling packs efficiently.

🏹

Projectile Scaling

Extra projectiles (GMP) and Pierce/Chain/Fork dramatically multiply your clear. Choose based on mob density.

📋

Attribute Planning

Requires 86 Str at max level. Plan your passive tree and gear to meet this — don't get stuck unable to level your main skill.

Alternatives to Flash Grenade

Similar skills — which one fits your build better?

How to Get Flash Grenade

Source
Uncut Skill Gem
Vendor
Gem vendor after quest
Max Level
20
Resource
mana

Use an Uncut Skill Gem to obtain Flash Grenade. These drop from enemies or can be purchased from the gem vendor once unlocked through the campaign.