Here is the full list of all 28 Paragon: The Overprime achievements.
Win 1 game.
Lose 1 game.
Score 3 consecutive wins.
Score 4 consecutive wins.
Score 5 consecutive wins.
Score 6 consecutive wins.
Score 7 consecutive wins.
Score 8 consecutive wins.
Reach account Lv. 5.
Reach account Lv. 30.
Reach account Lv. 50.
Eliminate 10 enemies in one game.
Win a game without dying.
Eliminate 100 heroes (cumulative).
Eliminate 1,000 heroes (cumulative).
Eliminate 1,000 minions (cumulative).
Eliminate 10,000 minions (cumulative).
Make 200 assists (cumulative).
Make 2,000 assists (cumulative).
Make 20 assists in one game.
Win a game within 10 minutes.
Win 10 times using a Tank hero.
Win 10 times using a Warrior hero.
Win 10 times using an Assassin hero.
Win 10 times using a Mage hero.
Win 10 times using a Ranged hero.
Win 10 times using a Support hero.
Complete all achievements