Both sets have few cards at rare that are worth much initially, and both sets have the majority of value concentrated in the mythic rare slot
Soul Warden shares the spotlight as a one-mana 1/1 soul sister with Souls Attendant and their planeshifted cousin Essence Warden
White Mage's Staff Rarity: Common TYPE: Artifact SUBTYPE: Equipment CMC: 2 Mana cost: USD: $0.17 EUR: 0.07 TIX: 0.03 EDHREC RANK: 8336 Job select (When this Equipment enters, create a 1/1 colorless Hero creature token, then attach this to it.) Equipped creature gets +1/+1, has "Whenever this creature attacks, you gain 1 life," and is a Cleric in addition to its other types
I.e., you can add a time counter to Dreamtide Whale, keeping it alive for another turn
The creature is joined by three more ooze creatures: Necrotic Ooze, Acidic Slime and Scavenging Ooze, which have the power to gain all activated abilities from other cards in graveyards, destroy a target artifact, enchant or land card when played, and exile a creature card from a graveyard to gain +1/+1 and one life for the cost of one green mana, respectively