Here is the full list of all 38 Minion Masters achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Complete 30 Achievements
Complete 25 Daily Quests
Use 100 Power Tokens
Play a friendly challenge with 3 different friends.
Use 50 Resource Tokens
Craft a Supreme card
Play 5 spells in a row during a Ranked Match and then win
Win 100 Ranked Battles
Reach the Silver League
Complete 10 Daily Quests
Use 20 Resource Tokens
Use 25 Power Tokens
Win 50 Ranked Battles
Win against 8 different Masters
Complete 15 Achievements
Acquire a collection of 100 cards
Craft a Rare card
Complete 3 Daily Quests
Reach the Bronze League
Win 10 Ranked Battles
Create 3 decks
Watch a replay
Win a Ranked Battle with less than 100 Health left
Reach the Stone League
Complete 5 Achievements
Win 3 Ranked Battles
Craft a Common card
Acquire a collection of 50 cards
Complete 5 solo challenges
Complete 10 solo challenges
Use 100 Resource Tokens
Use 250 Power Tokens
Craft a Legendary card
Win 500 Ranked Battles
Win a Ranked battle with 8 different Masters
Acquire a collection of 150 cards
Complete 50 Daily Quests
Complete 100 Daily Quests