Quickfinity - Type 2 (ONS/8th/MIR)

Main Deck:
4 Chromatic Sphere
4 Shrapnel Blast
4 Somber Hoverguard
4 Frogmite
4 Myr Enforcer
4 Thoughtcast
4 Welding Jar
4 Bonesplitter
4 Ornithopter
4 Tooth of Chiss-Goria
4 Ancient Den
4 Vault of Whispers
4 Seat of the Synod
4 Great Furnace
4 Glimmervoid (the only rare!)

Sideboard:
3 Terror
4 Mana Leak
4 Aether Spellbomb
4 Disciple of the Vault