It will let all of your sources deal double damage until your next turn, so that's now on your turn, you attack, your damage-based sorceries and loads more
until the end of this turn, this cards original ATK become 1500, also it can attack directly
almost any card can be used as Ink, which solves the problem of not having enough Energy, as in Pokemon, or Mana, as in Magic: The Gathering
No, experience counters themselves are not a Commander deck you can pull off easily
Remember that Nyleas casting cost will also add to your devotion pool, meaning once again, by turn four, you could have your opponent against the ropes
Heres a fun fact: Disney Lorcana features more original art than any Disney product ever created