A buildings that converts coins to elixir to dark elixir to gems
Level 1-coins to elixir(rate- 1coin=1elixir)
Level 2-elixir to coins (rate- 1elixir=1coin)
Level 3-coins to dark elixir (rate- 3coins=1 dark elixir)(th-7 only)
Level 4-elixir to dark elixir(rate- 3elixir=1dark elixir)
Level 5-dark elixir to gems and vice versa(rate- 10dark elixir=1gem)
Building cost - 1,00,000(th-6)

