Mana Lens

When Mana Lens enters the battlefield, pick a
color. You may spend mana as though it were
that color.
{t}: add {c}{c}{c}{c}{c}
If Mana Lens would be destroyed, exile it instead
and create a legendary artifact token named
Shattered Lens with "You may spend mana as
though it were any color." and
"{t}: add {c}{c}{c}{c}{c}"