mtg poster art cards The Gathering Tom Bombadil (Borderless Poster) -

They are in most decks that can run them, even decks with no need of the fixing sometimes run them, be it for the thinning, the graveyard filling, or the shuffles

You might have some artifact blink already in the same deck and this little blue artifact is excellent and easy to build around

Hardened Scales is a seriously powerful archetype in the Modern format, and Ozolith, the Shattered Spire acts as an extra copy of Hardened Scales with an activated ability that can bolster your board even if you run out of resources

What are the benefits of these cards and how good are they

The scale on this is perfect for two mana to produce five or six Black