Challenge Stage Experience
For the challenges unlocked in Lv.12 which contains 4 stages and each stage has different rewards. Let’s see the secret of challenging the stages!
Firstly, you need to ensure that the 4 challenges may not be able to clear in one day，as every challenge will cost huge energy. The challenges are not for the faint-hearted!
Challenge stage 1：Experience Forest（open at every Tue, Thu, Sat and Sun）；cost 20 energy
The rewards of this stage are experience pumpkins. This stage needs a certain strength of team to get the pumpkin rewards.
Stage introduction：Map difficulty almost zero. The enemies are 3 pumpkin kings，and the skill is restore HP (3 medical abnormal formations)
Cleared stage experience：
The key of clearing this stage is“gather fire”. After aim a pumpkin, all heroes gather fire to eliminate the pumpkin. If can eliminate one of the pumpkin, then will be easier to clear stage of the experience forest .
Recommend Heroes Level：3 heroes with Lv.15 above can battle；
Recommend skill：Use single burst damage，such as，combo shoot，catapult etc burst skills. Increase attack power of whole team is a must. If match with deformation, then the damage may greatly increase！
Skills not recommended：Skills such as rain skill or negative buff skill are not effectiveness.
Challenge stage 2：Gold cave（open at every mon, wed, fri and sun）；cost 20 points
This stage is one of the potential stage in the game，the reward chest can exchange many golds ！Stage introduction：In the stage, replicability of map is zero, 3 chest monsters, skill is“Diamonds rain”and can destroy terrain. Stage-clear experience. It is very simple to clear this stage，“On-Rail mode”.
Recommend Heroes Level：3 heroes with Lv.15 above are able to battle
Recommended skill：group skills have an advantage in this stage，such as rain, scattering, range damage. If it is matched with control skill, then it will be more effective.
Skills not recommended：High strength of destroy the terrain may be not effective, because some part of terrain in the stage cannot be destroyed.
Challenge stage 3：Dragon Volcano（open at every fri, sat and sun）；cost 30 energy
Challenge stage 4：Heroes Tomb（open at every mon, tue, wed and thu）；cost 30 energy
New players are not recommended to waste the energy to battle, because you still need to growth. Recommend 3 heroes with Lv.50 above can consider to battle.