I know where this is
7 Risen Reef Type: Creature Elemental Rarity: Uncommon Set: Core Set 2020 Released: July 12, 2019 Artist: Johan Grenier In Magic: The Gathering , there are other worlds below the sea, aquatic biomes filled with a myriad of diverse life
Whispers of the Muse (T1, Ext, S, Block) A favorite in "Turbo Xerox" (a blue deck which used minimal land but a ton of cantrips to thin out the deck), Counter-Phoenix (Shard Phoenix + Forbid) and Tradewind-Awakening (put Awakening on the stack, tap all your lands for mana, untap all your lands), Whispers has what might seem like a hefty price to pay for one card but you get to do it turn after turn after turn
Frenzied Gorespawn gives you a massive effect as a follow up to Kardur, because you just want to cause a frenzy
Commander Showdown - Kefnet vs Yennett Kefnet and Yennett love casting spells from the top of the deck
For its price point, Horn of Plenty might be the best draw engine in the entire game