http://gatherer.wizards.com/Pages/Search/Default.aspx?output=spoiler&method=visual&action=advanced&text=+%5bdiscard%5d&color=+%40(%7c%5bR%5d%7c%5bU%5d%7c%5bC%5d)
http://gatherer.wizards.com/Pages/Search/Default.aspx?output=spoiler&method=visual&action=advanced&text=+%5bdiscard%5d&color=+%40(%7c%5bR%5d%7c%5bU%5d%7c%5bC%5d)