On the other hand, if a spell or ability deals lethal damage to a creature enchanted with an Aura that has umbra armor, the game rules regarding lethal damage cause the Aura to be destroyed, not that spell or ability
This only needs to make a single mana a turn to have similar value to a Llanowar Elves, which is a fine floor when you consider the cards ceiling of an extra 3 or 4 mana a turn
For example, a Pokmon with a Float Stone attached in the regular trading card game has no retreat cost
Mark Rosewater (October 30, 2024)
But with so many options, where are you supposed to start
Any decks that dont benefit from these effects shouldnt swap out their duals just yet, however: the gain lands are better for decks that cant make use of their new characteristics, as they provide a slight buffer against Burn