We do this so we can create a better mix and avoid sending lazy stacks of the same few cards where possible
Floodgate flips a just summoned monster or monsters face down and then they cant change their battle positions again
What attacks does Bunnelby have
Green and black have many ways to sacrifice lands and profit from that too, like The Gitrog Monster, or cards that let you play lands from your graveyard, like Icetill Explorer
The unique bit of Shroud of Shadows to move enemies around is arguably the -most- unique in the trio, enemy moving is rather rare and you can use it to dump non-hunters into places where they'll never bother you again, if it's a hunter then given the bursts of movement happening in the final stretch of a scenario means that you might be able to leave a nasty hunter in the dust behind you, especially if you trigger a free move as well
The Pokmon Company has released gold metal cards and gold foil holographic cards as part of the Pokmon Trading Card Game (TCG)