Heroes duel opens at level 55
Heroes duel allows a player to use elixir to update their heroes advance skill
Players have 5 attempts per day, a loss does not use an attempt.
The first refresh is free and each refresh after that, consumes gold.
When the player opens the hero duel screen, they will see a screen where there is 3 heroes.
based on the level of difficulty, the player can win 50 ( x1), 100 ( x2) or 150 (x3) elixirs and use them to advance their heroes.
It is very important to note that there is not one type of elixir but different types, please bear that in mind when advancing your heroes.