he PTQ formats for Pro Tour Gatecrash are Sealed Deck in the Swiss rounds followed by Draft in the single-elimination Top 8, as explained here. Check out the Top 8 decklists from recent PTQs (including those on Magic Online) to see what kinds of archetypes people are putting together. Find a PTQ near you with this handy list! Enjoy!
Pro Tour Gatecrash Qualifier Season (Standard)
Innistrad Block Constructed on Magic Online