The value that the card offers from use of its abilities abstractly is clearly not up to par with many planeswalkers, but the strength comes from the ability to cast it on the opponents turn as well as the ability to shake up combat on that turn
Council Guardian Council Guardian is a 5/5 for , so not a bad body
This includes the classic Lich, but also Lich's Mastery, Exquisite Archangel, and Platinum Angel
Horn of Gondor The decks that are rocking Horn of Valhalla want double fisted horns with Horn of Gondor, another excellent token-making artifact
new Slivers thats 90 total Slivers we can choose from, way more than we could possibly want in our 99-card deck
Rhystic Study often gets a draw off of every spell an opponent casts even when they know the unwritten rule when facing a Rhystic Study- "ALWAYS PAY FOR RHYSTIC STUDY." And make no mistake, always pay