and it is Imagin cards.
From Game japan
Artifact creature - jelyfish (U)
at the bigining of your upkeep,return a artifact you control.
Extractor Demon (4)(B)(B)
Creature - Demon (R)
Whenever another creature put into graveyard, you may have"target player put two cards into garveyard from library."
Giltspire Avenger (W)(U)(G)
Creature - human soldier (R)
(t):destroy target creature deals damege to you this turn.