2017-09-29 : If a permanent has {X} in its mana cost, X is considered to be 0.

2017-09-29 : If the target permanent is an illegal target by the time Perilous Voyage resolves, the entire spell doesn’t resolve. You won’t scry.

2017-09-29 : Use the permanent’s converted mana cost as it existed on the battlefield to determine whether you scry.

2018-01-19 : There are many important moments in the story, but the most crucial—called “story spotlights”—are shown on cards. These cards have the Planeswalker symbol in their text box; this symbol has no effect on gameplay. You can read more about these events in the official Magic fiction at http://www.mtgstory.com.