MrFaberJack says:
Mmh, i have a question about stonecharging:
Stonecharging. You know how to imbue stone with the magma of its own creation. As an action, you can touch a Small or Medium stone to charge it with explosive energy. When you release the stone, it becomes charged and begins to glow, shedding dim orange light in a 5-foot radius. If a creature or object touches the charged stone, it explodes, and each creature within a 10 foot radius takes a number of d6 bludgeoning damage equal to your proficiency bonus. The charge lasts for 1 hour or until the stone explodes, and you can only charge one stone at a time in this way.
The text is not that clear about the possibility of throwing the charged stone.
If I was the DM, I probably wouldn't allow it, or at least I would homerule a system to regulate it, cause that would basically be a free spell with no costs except the risk.
I will leave that to your ruling @HeroAmongMen
I would say you can throw it, but it is something you would not be proficient with. So, no proficiency bonus on the attack roll.
If you miss the target, depending on how poorly you threw it, it could possibly hit a tree, another player or creature in the fight, etc.
If you miss, I’ll roll a die to determine whether it was above, to the left, or to the right of the target, and if the roll was less than 10, it undershot the target, causing an explosion closer than normal, which, by all rights, may affect you.
I’ll also say, since a handaxe has a throwing distance of 20/60, we will use the same for the grenade rock.
And for during a combat, let’s say that it takes a search action to find a rock, if you don’t have one ready to throw.
