This might sting a bit...

[Deathseide]

 {Panoptic Mirror} +  {Temporal Spring} + {booby trap} + {Animate artifact} + {Followed footsteps}
Hitch the spring to the mirror, then cast the trap, animate it and play the footsteps on it, make sure to not choose a card your opponant will likely be playing with the first trap.
Study your opponant's field, then on your upkeep when the footsteps activate, choose one of their cards you will bounce, target the newly created bomb to it and use the mirror to bounce that card.

[Deathseide]

Add a {voltaic key} and it is double whammy.
The original combo listed above was meant for a blue control deck, which are notorious for a lack of direct damage.
since you don't have to pay the green for imprinting onto the mirror or for casting the spring from the mirror, you can remove troublesome cards from your opponant's field and get a big hit of damage in.
I like both options, yet the animated booby trap provides a 6/6 critter and free copies of itself each turn.
Of course for even more fun toss an animate on the portal and have a {voltaic construct} and an animated {Thran dynamo} for a means to really mess up your opponant(s). As this definitly works in a multiplayer match.