Troll Grenadiers are a type of Troll in Skylanders: Spyro's Adventure that throws grenades at the Skylanders. They wear brown helmets which Trollverines wear also. Two Troll Grenadiers are seen riding the Troll Super Tank. They are often on elevated ground, away from the main battle.
Warnado battling a Troll Grenadier and Blaster Trolls