Nyx, Energy Mistress

+1: You get {e}{e}{e} (three energy counters). 
-2: Create a 0/0 colorless Construct artifact creature token with “This creature gets +1/+1 for each {e} you have.” 
-7: You get an emblem with “At the beginning of your upkeep, you get {e}{e}{e}" and "Pay {E}{E}{E}{E}{E}{E}: you may return Nyx, Energy Mistress from