Grand Slam is a weapon action granted by 
Corpsegrinder.
Description
Slam your weapon into the ground, thunderously impacting nerby foes and possibly pushing them away.
on Save: Targets still take half damage.
The target can't be pushed if it's Large or Huge in size.
Properties
- Damage
1d8 (1~8) + Proficiency modifier 
Bludgeoning damage - + 4
Thunder damage - Details
Recharge: Short rest
How to learn
Granted by the weapons:
