mtg all planechase cards I made for Ixalan - Custom Card Creation - Magic Fundamentals - Salvation Forums put it on the bottom of your library. All Planechase Cards (WHO INCLUDED)

You get the original spell, copied twice if my math is correct, and you get an arbitrarily large Kalamx because he's been gaining +1/+1 counters all this time

Your opponent that had that turn one fast start with their enabler or payoff or combo in plain sight on top of their deck can change how your table approaches the game, and Field of Dreams might assist in making sure the tables threat assessment or removal is pointed in the right direction

In this case, a non-Spirit would flip into a Spirit

Powerful cast trigger, check

Altar of the Brood was already a strong card, but with Bruvac the power level gets revitalized to the point where a turn one Altar could very well mean that you are going to mill upwards of thirty cards from each of your opponents deck on its own