Viable? Yes, absolutely. A good idea? Well, if you're building for ITC you have to consider Big Game Hunter.
If you want to invest more and try to deny your opponents the Big Game Hunter, take the Hemlocks. If you want to keep it cheaper, go with 2x Razorwings and a Voidraven (sweet sweet void mine for the Grot/Talos blobs you'll almost certainly face).
Yo ho, yo ho, a drug-fueled BDSM space-elf pirate's life for me!
Can I get a Roll Tide?