Instant
As a spell you control is countered by a spell or ability an opponent controls while you control a Mountain, you may reveal Confront the Riddlemaster from your hand. When you do, cast it without paying its mana cost.
This spell can't be countered.
Confront the Riddlemaster deals 4 damage to any target.
I had to get to shore. I had to get Zeus's thunderbolt back to Olympus. Most of all, I had to have a serious conversation with the god who'd tricked me.