Usually the biggest problem of mill decks is that they are slow, very slow
$2.99 Kodama's Reach Ultimate Masters $7.99 Turntimber Symbiosis Zendikar Rising $0.59 Blossoming Defense Kaladesh $8.99 Overwhelming Stampede Modern Masters 2015 $69.99 Nykthos, Shrine to Nyx Theros $1.79 Incubation Druid Final Fantasy Commander Decks $0.49 Karametra's Acolyte Theros $0.99 Ram Through Ikoria: Lair of Behemoths $0.69 Forgotten Ancient Final Fantasy Commander Decks $1.29 Garruk's Uprising Lorwyn Eclipsed Commander Decks $0.79 Wild Growth 3rd Edition $4.99 Boreal Druid Coldsnap 0 results found
Applying these considerations to the Stone-Tongue Basilisk deck, for instance, you might reduce the number of Natures Revolt and Stone-Tongue Basilisk due to their high costs
Blood Artist is similar but also different
whoever plays one can end their turn by declaring a color of their choice, getting its effects from their next turn
There are a total of three planeswalkers within the set, a Phyrexian, and the completed cycle of Triome lands that started within the Ikoria: Lair of Behemoths set