How will this affect my League of Legends experience once released?

Adding the mastery system to the rest of Riot’s game modes is especially important now that Hextech Crafting is released. Hextech Crafting loot is dropped through a strong performance tied to the mastery system. Since the mastery points system now gives meaningful rewards for a stellar in-game performance, adding this system to the other queues ensures that dedicated 3v3 and ARAM players are not left out.