Once youve made your account and downloaded the game, you can play through the games tutorial, which I recommend to get your bearings
Kraum lets you generate value as your opponents play cards since he lets you draw a card when your opponents cast their second spell each turn
The first is an upkeep trigger that trades two life for exiling the top card of a library and then casting while it's exiled
In fact, cards like Deadeye Tracker and Jadelight Ranger have started to slowly tick up in value after hitting a relative bottom in price, so you might want to pick these up if you think this is a style of play you want to build around
You can put together in-color graveyard payoffs like Archfiend of Sorrows, Tizerus Charger, Lucid Dreams and Young Necromancer, and theres enough overlap with the delirium and madness cards to just throw in things like Raving Visionary and Mystic Redaction
There arent any versions of Craterhoof Behemoth or Aurelia, the Warleader here