But then, you have Lobelia Sackville-Baggins as your Commander, and you can have her help you rebuild right after such a scenario by giving you the resources to cast spells from your hand the fastest on the table
I almost always prefer the former method because if ink gets pulled when you take the tape off, its far easier to patch up a black border than color-match and patch the back of the card and if your sleeves arent opaque on the back, a noticeable paint job will disqualify a card in tournaments (and it is noticeable)
If you can't cast these exiled cards, they'll go to your graveyard, and Valakut Exploration will deal damage equal to that number of exiled cards to each opponent
What do white border MTG cards mean
And, theyre even mechanically adventures
Whenever she casts a noncreature spell requiring three or more mana, she automatically deals two damage to every opponent and gains two life