Liliana will fit right into B/G Delirium decks returning Ishkanah, Grafwidow and Noxious Gearhulk to the battlefield, but it could also fit into Aetherworks Marvel decks as a way to put Ulamog, the Ceaseless Hunger on the battlefield
Rune-Tail, Kitsune Ascendant will generally flip immediately when you play it (especially considering a lot of attacks coming your way may be directed to your Planeswalkers instead of your life total), so it will make your creatures very resilient blockers, particularly Wall of Glare
Maros Gone Nuts Doubling effects are already some of the most impactful in Magic
Hennessy is concerned that if children can't get the cards, it could hurt the Pokemon community long-term
Cards that are strong, flexible, fun, or unique in Commander can hold value for years