FLIP: Increases the ATK and DEF of all Zombie-Type monsters by 200 points. As long as this card remains face-up on the field, the ATK and DEF of Zombie-Type monsters continues to increase by 200 points during each of your Standby Phases. This effect continues until your 4th turn after the card is activated.
: Continuous Monster Effects typically come into play as soon as the monster is successfully Summoned, and don't disappear until the monster is removed from the field or flipped face-down.
: Flip Monster Effects happen when a Flip Effect Monster is flipped face-up; either as a result of battle, a Flip Summon, or by another card effect that specifically flips it up, such as "Swords of Revealing Light". Cards like "Ceasefire" can flip face-down cards face-up, but no Flip Effects can be activated.