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.
Mana cost
3
R
R
Mana value
5
Printings
From
$0.08
EDHREC rank
#18589
Buy
Formats
Pioneer
Legal
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Pauper
Legal
Rulings
19 Mar 2021
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.
19 Mar 2021
If a card in a player's library has {X} in its mana cost, X is considered to be 0.