Tolaria West and Petrified Field are there just to make sure you can find and protect your Mistveil Plains
It also removes all artifacts and enchantments, as well, making it effectively a board wipe for everything that isnt a creature. I think that everyone knows this card is pretty efficient by now
Many Japanese cards can be more affordable than English cards due to their higher supply on the market, while the rarest Japanese cards can be extremely valuable for resale
In fact, a player missing the difference between the different types of spell triggers, or having to have Progenitus explained to them can be a good learning experience
This ability will also help you reset a planeswalker whose loyalty counters have gotten low (but note that she cant target herself), reset a card with cumulative upkeep, or just get extra mana out of a land (hello, Nykthos, Shrine to Nyx)
Whenever you cast a historic spell, untap Giant of Babil