Barrel Mastery

Barrel Mastery was introduced into Scrap Clicker 2 on the 14. march 2019 in the 7.0 update and is one of the most complex and fun endgame features, according to some players.

Barrel Mastery was first suggested by the player Phazer (Link to the idea).

Announcements and leaks
Barrel Mastery was announced on the Discord Server on the 4. march. On the 13. march, there was a beta version available for a very short time.

Also, before the public announcement, there were DM leaks showing Endte talking a little bit about the Barrel Mastery. In addition to this, he announced himself that 6.9 will be skipped, which started the hype.

Unlock
It can be unlocked at a x400 Stars upgrade for 50k Magnets.

How it works
It adds stars (White / yellow with a number from 1 to 5 in the star if yellow) to the barrel list. When a barrel is tapped, information can be seen. There are 5 Mastery levels: After level 5 was reached, it shows "10000/Max". This means, 15 Mastery Tokens can be got from 10k merges.

Use
Mastery Tokens can be spent on an upgrade (blue up-arrow at the top left corner of the barrels list) which increases the overall magnet gain by 5% / level.