Despite being a relatively low cost card, youll want to play this card later on, preferably before your opponent can use something like Grab Your Sword to wipe out your board and erase your advantage, or in order to counter Be Prepared once youve managed to play your Chernabog
There is no single answer to thisit depends entirely on what your deck wants to do
If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead. This is basically the perfect card for a Ghave, Guru of Spores deck, but it works in every +1/+1 counter deck too
This means that they assign their damage at the same time and the damage acts like normal combat
The game starts you off with the Apex collection, containing 3 packs to choose from: Pikachu, Charizard, and Mewtwo