Usually the biggest problem of mill decks is that they are slow, very slow
Other than that, you can also potentially try it in an improvise deck full of Thopters and Servos, capitalizing on it both as an artifact and on naturally ending up with lots of small tapped artifact creatures
Anyway, these are the giants that stride the old bones of a world before gods, which explains why of them, three of them die on the spot to Shock, and all of them die to Ravnica Limited Common Removal Spell, Last Gasp (and casuals, Last Gasp is really good )
Finally, we have Ivy Elemental, which is just a large elemental that has won way too many games for me for literally no reason besides us having too much mana
Meren grants you an experience counter whenever another creature dies under your control and then reanimates a creature in your graveyard with mana value less than the number of experience counters on it
Its also the case that Japanese sets are where new cards are revealed and printed before being translated into English, so if you do keep up with whats emerging in Japan as sets are released, youll get a very good idea of what to expect from upcoming English language sets