10 Counter Affinity - Type 2 (ONS/8th/MIR)

Main Deck:
4 Broodstar
4 Myr Enforcer
4 Aether Spellbomb
3 Assert Authority
4 Chromatic Sphere
4 Mana Leak
3 Override
3 Pyrite Spellbomb
4 Thirst for Knowledge
4 Thoughtcast
3 Ancient Den
1 City of Brass (replaceable with Ancient Den / Vault of Whispers)
4 Glimmervoid
4 Great Furnace
4 Island
4 Seat of the Synod
3 Vault of Whispers

Sideboard:
3 Cabal Interrogator
3 Chain of Vapor
3 Circle of Protection: Red
4 Pyroclasm - 1 Foil
2 Terror