Actually, my first upgrades were a set of Brimstone Eaters and Phoenixes for my 40+ card Fire deck - which I got later fully upped, heh. I thought that it'd be a nice thing to have +quanta generation with a bit of damage.
But then came the dissapointment that it's not that great against FGs, and sold'em all... ugh... and started over again with a pestal - which I still have for HBs :]