The deck would have to run a lot of tokens to make use of Soundwave, Sonic Spys 2nd ability, that lets you cast Instant or Sorceries in the opponents Graveyard for free
Machamp ex , for instance, could deal up to 160 damage per attack
Donald Duck Ghost Hunter has good stats for his cost
and the set was only available direct from Friendly Local Gaming Stores
As to the individual sets, I would like to note the following things: The low observed pull rate for the first two sets is remarkable, but in my opinion not quite statistically relevant
Basically, we're okay with a few cards that put +1/+1 counters on creatures but we tend to avoid more complicated versions (such as 0/0 creatures that come into play with +1/+1 counters) at common, although we're more willing to do something like that if there are a number of cards dedicated to a certain theme ( Darksteel 's modular, I'm looking at you)