Only 250 cards were printed and released through Murders at Karlov Manor collector boosters
If you have more artifacts than their mana value and the opponent guesses wrong, you can cast them for free
Whenever you attack with one or more creatures, create that many 1/1 green and white Citizen creature tokens
Not only can this damage be used to flexibly remove problematic creatures and planeswalkers, but with enough dying Elementals at your disposal, this effect can be used to immediately close out a game
When you want fast attacks, Bone Saw, Bonesplitter, and Taste for Mayhem come to mind
But with so many options, where are you supposed to start