What does Flawed Power Stone reward?

Flawed Power Stone gives Flawed Power Stone outright.

Where does Flawed Power Stone start?

It was picked up in The Barrens.

Its level has not been recorded yet; it shows once a player accepts it with the addon running.

Yes. Its quest id is not in Classic Era, so it is part of what Forever adds.

World of Warcraft: Forever · quest · new since Classic Era

A quest in World of Warcraft: Forever in The Barrens and turned in to Flawed Power Stones. Recorded by 6 players running the addon.

Level, giver, pay and objectives show once a player with the addon accepts the quest.

Item	Given	Item level	Vendor sell
Flawed Power Stone	outright	1

What does Flawed Power Stone reward?: Flawed Power Stone gives Flawed Power Stone outright.
Where does Flawed Power Stone start?: It was picked up in The Barrens.
What level is Flawed Power Stone?: Its level has not been recorded yet; it shows once a player accepts it with the addon running.
Is Flawed Power Stone new in WoW Forever?: Yes. Its quest id is not in Classic Era, so it is part of what Forever adds.

Source: what players running the addon saw in the quest windows; the quest text itself stays in the game. Every quest seen · The Barrens