mtg commander 2019 precon Magic: The Gathering Decks Commander 2019 consists of four preconstructed theme decks Spoiler] Commander 2019 Packaging :

If a spell or ability would destroy both an Aura with umbra armor and the creature it's enchanting at the same time, umbra armor's effect will save the enchanted creature from being destroyed

Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Legal Oathbreaker Legal Penny Legal

Or they would be, had supplies not already run out for much of the line

Champions of the Shoal

Cards with basic landcycling can get Plains, Island, Swamp, Mountain, Forest, or Wastes, plus their snow-covered land counterparts

If mass land destruction is appropriate at your table, you could do a lot worse than Carmen in the command zone