It's a cheaper Pestilence that can only send out activations for Snow-Covered Swamps, but in a Snow deck with the Swamps in question
It can also clear a potentially tricky character from play, such as a Bodyguard character or a card with a strong ability
Its good to see Wizards messing around with the playspace a little bit more with the likes of sets such as Jumpstart and cards like Grist, the Hunger Tide - a planeswalker that is also a creature everywhere but the battlefield - but pre-banning cards and not allowing certain things in Arena just means that the players dont get to do the same
For the cost of five mana, you can return the best creature from your graveyard to the battlefield as well as have Liliana on the battlefield
Three of the modes will be commonly used to handle a variety of situations, which include controlling both the hand and battlefield
Revealing Wind: D Unless you have a morph/disguise/manifest deck in your pod, I dont think you want to pay a bit more for a fog that gives you a small benefit