Combos Using Halo Fountain

Sylvan Awakening
Vizier of Tumbling Sands
Illusionist's Bracers
Phyrexian Altar
Karn, the Great Creator
Vizier of Tumbling Sands
Phyrexian Altar
Sydri, Galvanic Genius
Chromatic Orrery
Storm Herd
Cryptolith Rite
Concordant Crossroads
Vedalken Engineer
Karn, the Great Creator
Incubation Druid
Karn, the Great Creator
Vedalken Engineer
March of the Machines