Splash damage(lol) grenade. Just a splash on impact deals great damage.
Spear grenade. Throw on ground launches line forward deals great damage. Significant when spear crosses directly(very thin). Pierced but no area damage.
Area splash grenade creates a circle that opens in time dealing AoE damage. Enemies don't run out of it. Once it fully opens it stops.
Melee water splush. Extended range melee deals more damage the closer the target is. Dealing great damage but not killing(in pvp) when blank distance.
Upgrade 1: Less damage fall off
Upgrade 2: Less range but does AoE
Upgrade 3: Targets that die to water splush explode.
To be continued.