Hey,
I'm still new to the game (2 months) but one of my friends uses the Dreamer as his main master. He tends to begin with the Dreamer and a Day Dream. I've learned a few things here and there but take it with a grain of salt...
- let him take the first turn...he isn't going to do a whole lot and then you can move your whole crew into position
- take Hans or the Convict - Lord Chompy is a one hit wonder, he tends to eat things and run away so be preemptive and give him a reason not to come close to transform or w/e he does
- take Taelor - she really hurts him, I tend to put her in the forefront as bait, and then creep the Viks up so once Taelor gets engaged in combat the Viks can rush
With that said, it depends on how the guy plays. I'm used to starting off against the kid and his totem.
Good luck!