Here is the full list of all 50 Epic Cards Battle(TCG) achievements.
Reach Level 55
Reach 5% of enhancing rate
Reach Level 50
Win 5 battles in pro mode
Win 500 battles in global match
Reach Level 45
Join a guild
Reach Level 40
Watch a battle replay of your own
Reach Level 35
Win 250 battles in global match
Achieved 100 stars in campaign
Unlocks 50 arts in gallery
Reach Level 30
Reach Level 25
Craft a new card successfully
Win 100 battles in global match
Possess 50 distinct cards
Reach Level 20
Win a global match under condition "Time Out"
Win a Ladder battle
Watch a live battle between other players
Complete all lessons in academy
Reach Level 15
Win 20 battles in global match
Reach Level 10
Complete a Boss campaign quest
Win 5 battles in quick mode
Complete a daily mission
Win a battles in global match
Possess 20 distinct cards
Possess 10 distinct cards
Complete a campaign quest in Hard difficulty
Buy any item in shop
Enhance a card to level 10
Evolve a card
Reach Level 5
Win a battle in campaign
Send a chat message
Complete all campaign quests in Hard difficulty
Win 5 battles in hardcore mode
Possess 100 distinct cards
Reach 15% of enhancing rate
Reach 30% of enhancing rate
Add a friend
Reach Level 60
Reach Level 65
Reach Level 70
Win a global match under condition "Extinction"
Ranked in Ladder TOP 100 and get rewards