Supply
{X}{G}{W}Sorcery
Create X 1/1 green Saproling creature tokens.
Supply // Demand
{X}{G}{W} // {1}{W}{U}
Sorcery // Sorcery
Oracle Text
Demand
{1}{W}{U}Sorcery
Search your library for a multicolored card, reveal it, put it into your hand, then shuffle.