Its rare to see a digital card game scale this quickly, and the fact that Pocket has achieved it so soon after launch is a strong sign of both the demand for a mobile-first Pokmon TCG and the effectiveness of its design
Sure, you have to pay to make her a full-blown Serra Angel, but shell fulfill her purpose early, trade late, and leave behind some followers in her sacrifice
Its not unfathomable to imagine that, unfortunately, these will have been sold to people intending to sell them on for much higher than the recommended retail price
Blink the summons right before they go away, and you have a nice engine going on, besides all the crazy stuff that you can do with Agent of Treachery or Atraxa, Praetors' Voice
Is the card a carbon copy of an existing card