The best way I've thought of running them would be with WWP and chock full of Warriors. Run in multiples and just evaporate blobs. Have to have other options for your tank busting, with my preference being for Reavers, but would probably work better with Scourges.
Example List:
Archon : Webway Portal, Shadow Field
Kabalite Warriors : 16 Warriors, Splinter Canon
Kabalite Warriors : 16 Warriors, Splinter Canon
Reavers : 3 Reavers, Heat Lance, Cluster Caltrops
Reavers : 3 Reavers, Heat Lance, Cluster Caltrops
Reavers : 3 Reavers, Heat Lance, Cluster Caltrops
Scourges : 5 Scourges, 4 Haywire Blasters
Scourges : 5 Scourges, 4 Haywire Blasters
Tantalus : Shock Prow
Tantalus : Shock Prow
Also, when you consider the size of the Tantalus, Leadership bombing could be an amazingly effective.
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