[CONT]:
Sentinel
(You may only have up to four cards with "[CONT]:Sentinel" in a deck)
[AUTO]:[Choose a «
Bermuda Triangle
» from your hand, and discard it] When this unit is placed on (GC), you may pay the cost. If you do, choose one of your «Bermuda Triangle» that is being attacked, and that unit cannot be hit until end of that battle.