At lower power levels, youre not going to see cards like Entomb, but thats another discussion entirely, and youll see why Im less concerned with that later
Hes best played if your opponent has a high-cost rested Character on the field that you simply cant remove through your attacks
I looked at the reverses for 4 of the 7 boxes and it looks like they were still printed on a 110 card sheet, with 21 commons appearing on the sheet twice
Legality depends on the tournament format -- Mondrak, Glory Dominus can be legal in some formats and banned or restricted in others
Instead of being only limited to 100 copies like Viscera Seer, each of the 63 Retro Frame Artifacts had 500 serialized copies printed, meaning there were theoretically 31,500 new serialized Magic cards introduced to the market (not all of them will be opened)
If they only have Progenitus in play, for example, a card like Diabolic Edict will work