Sideboard:
1 Archway Angel
1 Azorius Guildgate
1 Boros Guildgate
1 Circuitous Route
1 Crackling Perimeter
1 Dimir Guildgate
1 Expansion // Explosion
1 Gate Colossus
1 Gatebreaker Ram
1 Gatecreeper Vine
1 Gatekeeper Gargoyle
1 Gates Ablaze
1 Gateway Plaza
1 Gateway Shade
1 Gateway Sneak
1 Glaive of the Guildpact
1 Golgari Guildgate
1 Greenside Watcher
1 Growth Spiral
1 Gruul Guildgate
1 Guild Summit
1 Hold the Gates
1 Izzet Guildgate
1 Maze's End
1 Opal Lake Gatekeepers
1 Open the Gates
1 Orzhov Guildgate
1 Plaza of Harmony
1 Rakdos Guildgate
1 Saruli Gatekeepers
1 Selesnya Guildgate
1 Simic Guildgate
1 Sunspire Gatekeepers
1 Ubul Sar Gatekeepers