The real power comes from Shadowfaxs ability to take a creature card from your hand with lower power than Shadowfaxs four and put it directly into play tapped and attacking when Shadowfax attacks
It's best if you're able to equip Glenn with an Umezawa's Jitte that has counters on it since you can attack with the low skulk power and then after blockers are declared and Glenn is unblocked, you simply use the counters to beef him up and reap the rewards
Series 3 launched alongside the Masaki / "Evolution by Mail" Campaign : players who sent in Kadabra, Machoke, Graveler, Haunter, or Omanyte cards together with a Bill's PC Pass Card received holographic evolved versions (Alakazam, Machamp, Golem, Gengar, Omastar) by return mail
A 151 master set includes all standard cards, reverse holo versions, and Secret Rares for a total of 360 cards 165 standard set cards , 153 reverse holos , and 42 Secret Rares
But what of fans who focus their love on one specific game in the series