Infuse Grenade - SU

You gain proficiency in grenades. As a swift action, you can spend any number of Entropy Points to energize a grenade you’re holding. For each EP you spend in this way, you increase the grenade’s range increment by 5 feet and increase its saving throw DC by 1, though the modified save DC can’t exceed 10 + 1/2 your vanguard level + your Constitution modifier. An energized grenade is unstable, and if not used before the end of your next turn, the grenade is destroyed or explodes (50% chance of either result).