I can't really speak for the [elite skill][1]'s power. I assume though that it is on par with the other summon skills. It doesn't give an advantage to people with it, just another choice of elite skill. It's not necessarily a better one.

The [miniature Rytlock][2] is a cosmetic item: it will make a miniature character run after you. The miniature doesn't fight, and can't help you in any way.

The [Golem Banker][3] is a convenience item, allowing you a fast access to your bank, from almost any place in the game world. It's a consumable, usable only once. Once used, it lasts 5 days.

The [Chalice of Glory][4] is a one-time-use item giving 5000 of [glory][5] to your account. This allows you to buy cosmetic upgrades for your PvP weapons.

The [Tome of Influence][6] is also a one-time-use item which gives 1000 of [Influence][7] to the Guild you currently represent. Influence allows the guild to do research, and unlock guild services. Note that an equivalent to the tome of influence is earned through the game, the [Letter of Commendation][8].


----------



All in all, it doesn't really give a gameplay advantage over people with the normal edition. You just get items which are mostly convenient, or cosmetic.


  [1]: http://wiki.guildwars2.com/wiki/Summon_Mistfire_Wolf
  [2]: http://wiki.guildwars2.com/wiki/Miniature_Rytlock
  [3]: http://wiki.guildwars2.com/wiki/Golem_Banker
  [4]: http://wiki.guildwars2.com/wiki/Chalice_of_Glory
  [5]: http://wiki.guildwars2.com/wiki/Glory
  [6]: http://wiki.guildwars2.com/wiki/Tome_of_influence
  [7]: http://wiki.guildwars2.com/wiki/Influence
  [8]: http://wiki.guildwars2.com/wiki/Letter_of_Commendation