Here is the full list of all 13 Heroes of Scene achievements.
Exchange 1000 resource time or more
Defeat your opponents with a rating higher than you more than 500 units
Complete training
Win with less than 10% health of gate in game mode
Use 100 spells in game mode
Kill 10 enemies in game mode
Summon 100 heroes in game mode
Get the increase any resource more than +10 sec in game mode
Win with full health of gates in game mode
Build the maximum number of buildings in a battle with the player
You need to have 10 heroes in same time
Win a player for 30 seconds
Get two rare cards at same time