Dwarven Treasury

Dwarven Treasury is a daily event and it is one of the main source of Gold and various item upgrade materials.
Each player can enter the Dwarven Treasury twice a day.
In addition, players will be ranked in a weekly leaderboard in accordance to the total dwarves killed, which earns them additional prizes.
=The Event=
# In the Dwarven Treasury, the higher your player level and the more dwarves you kill, the more gold you will receive.
# Each player can enter the Dwarven Treasury twice a day; this resets daily at 05:00.
# Players receive an additional reward if they accumulate a certain number of kills each day. The reward resets daily at 05:00.
# In additional, players who rank highly for the number of kills performed that week receive additional rewards. This ranking resets every Monday at 05:00.
# Players can choose to sweep the Dwarven Treasury and receive rewards based on their highest overall record. Sweeping kills count for the weekly total kills!
Tip: As your strength grows over time, it is a good idea to try and beat your own score rather than just sweeping for a long period.
=Special rules=
# All ranged units are disabled. This means you can only use Offense, Defense and Charge units.
# Hero spells deal double damage. This makes heroes like Luna and Sandro great in the Dwarven Treasury.
=Rewards=
==Weekly rewards==
{| class="wikitable"
! Rank !! Diamonds
|- 
| 1 || 350
|- 
| 2 || 310
|- 
| 3 || 280
|- 
| 4-10 || 260
|- 
| 11-20|| 240
|- 
| 21-50 || 220
|- 
| 51-100 || 210
|- 
| 101-250 || 190
|- 
| 251-500 || 170
|- 
| 501-1000 || 140
|- 
| 1001-3000 || 100
|- 
| 3001-6000 || 70