There are plenty of Rat, Insect (hello Scute SwarmScute Swarm), and Spider decks running around out there that will be excited to get their hands on this card
Proxy Liliana of the Dark Realms from @TheProxyGuy on Twitter, also clearly marked "not for sale" The TLDR is that if you want to use proxies for unsanctioned play, that's great
The Artifact Creature limitation also means plenty of green Creatures that normally can make use of +1/+1 counters (Pelt Collector, Kalonian Kydra etc.) will just be less useful
Lair of the Ashen Idol Plane: Azgol At the beginning of your upkeep, sacrifice a creature
Duel Links in particular is most clearly analogous to Pokmon TCG Pocket as both are based on existing physical TCGs
Legendary Creature - Human Wizard Creature (CTRL to add secondary) Instant Ephemerate Exile target creature you control, then return it to the battlefield under its owner's control