For Siren2208
User can create explosive crystals

Pros:
-user completely controls the appearance of what they make
-user can make crystals glow
-user can control when a crystal explodes
-user is immune to the shrapnel created by the grenade
-user can tempt others to make the grenade

Cons:
-the crystals explode if another (not the user) touches the grenade
-the crystals made are coloured by emotions of the user
-user uses bodily resources to make crystals
-user may have blood issues with crystals forming in the heat of the moment, risk explosion within the body
-user is not immune to the audible and visual damage from the grenades
-user will harm many from shrapnel at all times
-user cannot control the explosion intensity

Weakness: rapid use/overuse
User will start to lose layers of skin and muscle with rapid use. This may also cause long term health issues with extended use over long periods.