The Paladin is absolutely the better card due to the absurd metalcraft ability, but both should be in virtually all your equipment EDH decks
Leviathan The card was almost a legend, because someone always knew somebody who owned one
Its powerful enough to send me looking for other Pest-generating Witherbloom cards from the main set, without necessarily needing any of them to be worthwhile on its own.The fact that Pests can be killed on cue for one life makes them perhaps the most optimal way to manage the other effects in the deck, so even if you turn your nose up at the idea of creature combat, theres plenty here to love
So right away we see a commander that cares about enchantments
In some multiplayer formats, creatures controlled by different players may deal combat damage to you simultaneously
Hes curious to hear about the Goblins you encountered and otherwise bemoaning his lack of ability to talk to animals, as he really wants to see inside the mind of the bear next to him