Eric, Master of Games

{x}{w}{t}: Prevent the next X damage that would
be dealt to any target this turn.
{x}{u}{t}: Counter target spell unless its controller
pays {x}.
{x}{b}{t}:Target creature gets -X/-X until end of
turn.
{x}{r}{t}: Eric, Master of Games deals X damage to
any target.
{x}{g}{t}: Target creature gets +X/+X until end of
turn.