Aether Gem

{t}: Place a charge counter on Aether Gem for each land you had enter the battlefield under your control this turn.
{1},{t}: Add colorless mana equal to the number of counters on Aether Gem.
An invention of Paradis' artificers. Aether Gems cycle aether to and from the Blind Eternities and can be used to produce a large supply of colorless mana.