This happens on your upkeep, meaning you can't get any Valgavoth triggers
This can include powerful creatures like Ulamog, the Ceaseless Hunger, or Baneslayer Angel
Mostly that #1, setting a card with no energy cost works fine, and #2, you can transfer abilities without problems, as long as they are in the first slot
"Vintage" refers to the following sets: Base, Base 2, Jungle, Fossil, Gym Heroes, Gym Challenges, Team Rocket, Neo Genesis, Neo Discovery, Neo Revelation, Neo Destiny, eSeries, and the EX series
Last week, The Pokemon Company released the first roadmap for the mobile game and detailed some of the updates that will be coming soon
Lucario exs attack, Aura Sphere, does 100 damage for three Fighting Energy