There will be vaults in each deck
Her detractors within the guild have been quick to claim that she's neglecting her true duties to her guild, but so far no one has openly challenged her leadership
You can see why it's here, right
Whether its a sorcery, a creature with an enters-the-battlefield ability, the loyalty ability on a planeswalker, or even just an instant that your opponent is forced to cast main phase because they were tapped out on your turn, there are a multitude of ways your opponent could remove your permanent on their turn for roughly three mana
This is a pretty massive ability because it means you can stack flying, trample, and other counters in addition to +1/+1 counters to make a one-shot monstrosity that doesnt ever really go away
Its strong with threshold and unplayable without, as you cant even target the land to be destroyed