Sunken seabed ruins (R)
1
During your main phase, when a size 3 or greater monster enters your field, if this card is in your drop zone, you may pay 1 life. If you do, cast this card from drop zone. [Set] (This card remains on the field.) If you would be dealt 3 or more damage by monster effects, it is reduced to 0. When a monster on your field attacks, put the top card of your deck into your gauge. This ability only activates once per turn.
