They resolve even if the Adventure spell is countered before the copy is created
Then again, getting colorless mana in a deck that already needs white mana might be difficult, especially when you consider that Sea Gate Wreckage is kind of the payoff for being colorless and low to the ground
Pillar Analysis: Iconic Art & History, Scarcity (Arabian Nights, Reserved List), Collector Demand
I've also been obsessed with Warhammer since the 1990s, and love nothing more than running tabletop RPGs like D&D as a Dungeon Master.
Certainly there are plenty of counters to board wipes and they are usually only two or three mana
Clive's Hideaway BPhillipYork: Could be really really good in legendary matters decks, otherwise a tough condition to satisfy