Building a powerful and magical deck with your favorite characters is essential, but dont forget to protect your cards as well
Umbra armor's effect is applied no matter why the enchanted creature would be destroyed: because it's been dealt lethal damage, or because it's being affected by an effect that says to "destroy" it (such as Breathe Your Last)
Knowing what that card is becomes part of the information you have access to, just like you can look at the cards in your hand
If youre looking for a budget repeatable option, I like the recent Vat of Bebirth quite a bit if you can enable it
Aurora, Dreaming Guardian has a cost of 5 Ink, but can be played on a different Aurora card for the reduced cost of 3 Ink, using its Shift ability
(6/6/2025) If an adventurer card ends up in exile for any other reason than by exiling itself while resolving, it won't give you permission to play it with its primary characteristics