Grog not chosen one!

For the entire campaign Grog should be followed by some snot nose kid and a wizard who keep trying to steal the stone.
- Grog wakes up one night to find them trying to steal his weapon, and the twerp can't even lift the handle off the ground. He picks up the hammer by the head and spins around to dislodge the kid - which works, insofar as the child flies off toward the mountains, holding some kind of sword. Grog wonders where he got that, and goes back to bed.
- at the end of the game, the wizard or the mucus child should be able to take the sword out of the stone

This reminds me of a comic I saw a while ago where the BBEG was gloating that he could only be killed by the sword next to him that couldn't be pulled from the stone. The barbarian picks up the BBEG and swings him at the sword.

At the end it is revealed that only the chosen could wield the sword. No one ever mentions that the sword had to be released from the stone and Grog was the hero all along. Because to be a hero you have to be strong. Foolproof selection method.
- 🔥🔥

Jack Horner did that in Puss in Boots 2: "Excalibur! I couldn't get this rock off of it, but it's still pretty cool, right?"

And if INT 10+ maybe grog can figure out one day it just tilts out the side to release.

it would be even funnier if it's a fighter with the barbarian archetype (pf2e) or 1 level of fighter and the rest of barbarian (dnd) so that their lore is someone who was trained to use a sword but couldnt, so started raging and getting stronger to use that hammer

Grog accidentally does something that makes them chosen mid-swing and the thing slides off like a catapult, knocking out several enemies and causing plenty of property damage.

When every fight is taking one wild, easily dodgeable swing, then spending a whole turn getting it behind your back to take another swing.

Grog tries his hand, but feels bad when he rips the magical stone out of the ground, and cat get it back in. Grog smart enough to know he didn't do it right, only option is to travel the country side and find the real person who will free the sword, bringing it to them rather than the other way around. Grog so smart, this way better idea