I actually had an
Ice Cave
deck back in the day. My strategy was essentially to assemble the Domain, then control the board as much as possible with
Ice Cave
until I could finish the game with
Draco
. Not surprisingly, nobody ever seemed to have

open.
Obviously, it would have been better with
Prismatic Omen
.
I also had a deck built around
Symbiotic Deployment
. I don't remember most of it, except that
Parallel Evolution
was involved, and that I lost a team game with it when my teammate played
Volcanic Spray
and wiped out several hundreds of my tokens. (I was waiting for one of my enchantment removal spells so I could destroy a
Worship
.)