Here is the full list of all 42 Elemental War 2 trophies - there are 28 bronze, 9 silver, 4 gold and 1 platinum.
Get a platinum medal on a map.
Survive a map.
Survive a map on difficulty level Master.
Find all hidden treasures in a game.
Defeat 1,000 monsters.
Find your first treasure chest.
Finish your first quest.
Reach the global bronze rank.
Get a bronze medal on a map.
Get a silver medal on a map.
Get a gold medal on a map.
Defeat a monster right before the portal.
Use an active item for the first time.
Combine three elements to form a new tower.
Combine at least two elements to form a new tower.
Equip a tower with an item.
Defeat your first elemental.
Interact with an object on the map.
Complete 100% of the game.
Unlock all items.
Use every active item at least once.
Defeat 10,000 monsters.
Defeat 100,000 monsters.
Finish all quests.
Get a bronze medal on every map.
Get a silver medal on every map.
Get a gold medal on every map.
Get a platinum medal on every map.
Get a crystal medal on a map.
Get a crystal medal on every map.
Reach the global silver rank.
Reach the global gold rank.
Reach the global crystal rank.
Survive a map without losing a single life.
Survive a map without using an active item or tower equipment.
Survive a map in 15 minutes or less.
Survive a map without building a tower that slows down or stuns monsters.
Skip a total of 10 minutes by calling waves in advance.
Find the hidden scarecrow or snowman on each map.
Collect all 7 dragon orbs for the first time and get a wish granted.
Find all hidden dragons.
Reach the global platinum rank.