Trove

It takes 1100 total Mastery Points to reach Rank 20. Most things you do in Trove will grant you Mastery Points, such as gaining levels, adding items to your collections and leveling your professions. Mastery comes very quickly during the early parts of the game, so simply focus on leveling classes and gathering equipment styles(equipment will say on the tooltip if the style is in your collection or not). If you still need more mastery, the fastest way to get it for an early-game player is Fishing. Simply buy a pole from Saltwater Sam in the hub for 200 glim, some lures for 10 glim each from the same vendor, and go fishing in the hub by pressing with your targeting reticule(circle in the middle of the screen) pointing at a body of water. The fish get added to your collection in the same way that equipment styles do.