Orb of the Stollen Dragon

When Orb of the Stollen Dragon enters or leaves
the battlefield draw card.
{w}{u}{g}{t}: Target creature gains +5/+5 until
end of turn.
{b}{u}{r}{t}: Target creature gains -5/-5 until end
of turn.
Sacrifice Orb of the Stollen Dragon: add 1 mana
of any color.