White Rose Cloister — Ruling

Effetto 1

This card's effect that Special Summons a "Rose Dragon" monster or Plant monster from your hand starts a Chain. (It does not target.)

This card's effect that reveals the top card of your Deck and increases the ATK of Level 7 or higher Synchro Monsters on your field starts a Chain. (It does not target. When activating this effect, you must declare a listed card type.)
After revealing the top card of your Deck, return it to the top of the Deck.
The effect that increases the ATK of all Level 7 or higher Synchro Monsters on your field is applied to all face-up Level 7 or higher Synchro Monsters in your Monster Zone during that turn.