Theros before being played

If you look at Theros from the narrow focus of any one format, you are sure to be disappointed, but a new expansion has several communities, and each one needs to see something in it that they like, and for that to happen, some slots are "taken" for a specific format and those cards were never intended to work in another format.

For example, when a card says "every opponent discards a card" that text is telling you 'I am a multiplayer card, you can play me in other formats, but if you only have one opponent, I am not helping you as much.'

As spoiled, Theros seems to have a really great limited environment, it also has a bunch of fun commanders for EDH, and a couple of gems-hidden or obvious-that will be found out as Standard, Modern, and Legacy staples. At first glance in order to make enchantments work a lot of removal has been toned down. While this toning down effect will definitely work in Standard, the older formats don't have such a restriction. I have come across comparisons of Theros to Avacyn Restored, yet I think Avacyn Restored is a fun set and love playing many of its cards.

I do think that Innistrad is a better set than Theros, but so much has to happen that me saying this is somewhat silly. I am still on the lookout for the equivalent cards to Delver of Secrets, Snapcaster Mage, Geist of Saint Traft, and Liliana of the Veil.