Ravnica Block

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Everything is from Ravnica block.
There is no 5-color identity Legendary Creature from Ravnica block, so I punted and use Transguild Courier (at least it's 5 color).
If someone ever were to balk at it (no one ever does), I would go off-theme and use Sliver Queen.
 
Mana Acceleration (10): General (1): Spells (26): Sideboard (Omitted/Cut card ideas):
1 Boros Signet 1 Transguild Courier 1 Mizzium Transreliquat 1 Szadek, Lord of Secrets
1 Dimir Signet   1 Sword of the Paruns 1 Civic Wayfinder
1 Golgari Signet Creatures (29): 1 Biomantic Mastery 1 Farseek
1 Selesnya Signet 1 Angel of Despair 1 Brightflame 1 Stone-Seeder Hierophant
1 Gruul Signet 1 Autochthon Wurm 1 Debtors' Knell 1 Spectral Searchlight
1 Izzet Signet 1 Borborygmos 1 Glare of Subdual 1 Birds of Paradise
1 Orzhov Signet 1 Chorus of the Conclave 1 Golgari Germination 1 Smash
1 Azorius Signet 1 Dimir Doppelganger 1 Hit // Run 1 Djinn Illuminatus
1 Rakdos Signet 1 Dimir Guildmage 1 Invoke the Firemind 1 Tidewater Minion
1 Simic Signet 1 Experiment Kraj 1 Master Warcraft 1 Dark Confidant
  1 Firemane Angel 1 Palliation Accord 1 Cerulean Sphinx
Lands (34): 1 Gleancrawler 1 Pollenbright Wings 1 Boros Guildmage
1 Overgrown Tomb 1 Loxodon Hierarch 1 Privileged Position 1 Selesnya Guildmage
1 Sacred Foundry 1 Mindleech Mass 1 Research // Development 1 Crime // Punishment
1 Temple Garden 1 Niv-Mizzet, the Firemind 1 Supply // Demand 1 Pariah's Shield
1 Watery Grave 1 Razia, Boros Archangel 1 Voidslime 1 Lyzolda, the Blood Witch
1 Godless Shrine 1 Simic Sky Swallower 1 Hissing Miasma 1 Momir Vig, Simic Visionary
1 Steam Vents 1 Sisters of Stone Death 1 Copy Enchantment 1 Teysa, Orzhov Scion
1 Stomping Ground 1 Tolsimir Wolfblood 1 Followed Footsteps  
1 Blood Crypt 1 Trygon Predator 1 Doubling Season  
1 Breeding Pool 1 Vulturous Zombie 1 Perilous Forays  
1 Hallowed Fountain 1 Yore-Tiller Nephilim 1 Stomp and Howl  
1 Boros Garrison 1 Skeletal Vampire 1 Mindmoil  
1 Dimir Aqueduct 1 Novijen Sages 1 Chant of Vitu-Ghazi  
1 Golgari Rot Farm 1 Tidespout Tyrant 1 Proper Burial  
1 Selesnya Sanctuary 1 Nullmage Shepherd 1 Storm Herd  
1 Gruul Turf 1 Primordial Sage    
1 Izzet Boilerworks 1 Living Inferno    
1 Orzhov Basilica 1 Stalking Vengeance    
1 Azorius Chancery 1 Blazing Archon    
1 Rakdos Carnarium 1 Oathsworn Giant    
1 Simic Growth Chamber 1 Twilight Drover    
1 Prahv, Spires of Order      
1 Novijen, Heart of Progress      
1 Svogthos, the Restless Tomb      
1 Sunhome, Fortress of the Legion      
1 Swamp      
2 Island      
3 Forest      
1 Mountain      
3 Plains