You can also protect your creatures from board-wipes with Rootborn Defenses, and the deck includes a surprising amount of card-draw, so you can rebuild after a Wrath
Your brain will want to read the name, look at the art or see what the card does, especially if you dont immediately recognize the card - and oh wow look at this power and toughness for its mana cost, why am I not playing this card
While most creatures in the deck are a discard outlet aswell it still ended up being a good amount of pieces, not too hard because the deck is a pile of good cards and a combo, but Loner + Cauldron being a kill is an upgrade for sure
The rule breaking was a product of the Rat's creation
Let me know what you think, and happy brewing!
(5/3/2019) Karn's first ability affects only artifacts on the battlefield