Sure, its got its free-to-play system, but its mission and crafting system allow you to craft the deck you want relatively quickly, provided you know what you want
Examples of the best changelings would be: Morophon, the Boundless's ramp and combo potential makes its high cmc worth it
The idea is that the more they play, the more players will improve and move their activities to real life
However, TCGPlayer lists its value (at the time of writing) at only $4.75, and its past value has peaked $8.88
That and possibly improving the variables above means that 47 is really the ceiling for how many drafts you need to do, but it may end up being much lower
This should see play in stage 2 ex decks, but thats it