Spinerock Knoll
Land
Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)
This land enters tapped.
: Add 
.
, : You may play the exiled card without paying its mana cost if an opponent was dealt 7 or more damage this turn.
Illustrated by
Secret Lair Drop#439RareJapaneseLegality
Rulings
At the time the last ability resolves, you’ll get to play the card if a player who is currently your opponent, or a player who was your opponent at the time they left the game, has been dealt 7 damage over the course of the turn.
It doesn’t matter how the opponent was dealt damage or by whom, as long as the total damage is 7 or more. You don’t specify an opponent when you activate the ability.
You’ll get to play the card even if Spinerock Knoll wasn’t on the battlefield at the time some or all of the 7 damage was dealt.