Sundered Portal

{t}: Add {r}
{t}Untap target attacking creature without Flying.
Prevent all combat damage that would be dealt to
and dealt by that creature this turn.
{1}{r} Planeshift (Travel Portal): (Exchange this
card with a card you own with the same Planeshift
from outside the game or Exile. That card cannot
Planeshift this turn.)
"It means hey can get here from there."