It IS 100% Free-To-Play.
A game cannot be Pay-To-Win if it is not also Free-To-Play.
Notice that game normal games like starcraft 2 that cost $60 cannot be called Pay-To-Win.
Anyway, this deck cost a cheap $15 at most. It is basically free.
Decks from boxes cost around $60 which is okay since some people will buy 2-3 normal game each year which will cost more.
I would say that the dream tickets are better spent for main/mini box cards.
According to people who spent cash, UR/SR from main boxes can cost around $15-20 each while cards from structure decks can cost around $1-2 each.