Feedback:User/Reaper of Scythes/Summoning Stones

Intro
So we all heard about these companions and I figured out how they might be able to do this:

Companion = Summoning stone

 * One ally, not three heroes
 * Summoning stones were added to GW1 later because when they were develloping GW2 they thought up summoning stones and wanted players to meet them to test the idea.
 * So they probably will be like this:
 * Asura can summon a Golem,
 * Human can summon a Dwarf,
 * Sylvari can summon a Druid,
 * Norn can summon a Kodan
 * Charr can summon a Siege Devourer.
 * They also said something about wanting to reward player for not taking Companions with them, so you will probably be less powerfull like Shadow Form with 33% less damage dealing (No not enter Godmode, just 33% less damage).
 * These allies' skills and attributes might be costumizable like heroes are in GW1: e.g. you can create a damage dealing summon if you are a healer or you can create a healer if you are a damage dealer yourself (and ofcourse you can balance it out).

Feedback is appreciated and feel free to add something more about this!