
Choose any target. Scry 3, then reveal the top card of your library. Riddle of Lightning deals damage equal to that card's mana value to that permanent or player.
Illustrated by Daarken · Journey into Nyx · #107
2021-03-19
If the chosen target is an illegal target by the time Riddle of Lightning tries to resolve, the spell doesn't resolve. You don't scry 3 or reveal any card.
2021-03-19
If a card in a player's library has {X} in its mana cost, X is considered to be 0.