Toll Baron

As long as Toll Baron remains untapped, spells
your opponents control cost {1} more to cast.
At the beginning of each opponent's upkeep,
that player may tap Toll Baron. If that player
does, you create a colorless Treasure artifact
token with "{t}, Sacrifice this artifact: Add one
mana of any color to your mana pool."
By order of the king I cannot let you pass...unless you
pay even better?.