Generate a deck based on roles, meta cards, and special slot rules.
<% if deck.any? %>Average elixir: <%= stats[:average_elixir] %>
Meta cards: <%= stats[:meta_cards_count] %>
Spells: <%= stats[:spells_count] %>
Troops: <%= stats[:troops_count] %>
Buildings: <%= stats[:buildings_count] %>
Champions: <%= stats[:champions_count] %>
Heroes: <%= stats[:heroes_count] %>
Evolutions: <%= stats[:evolutions_count] %>