what does it mean to mill cards in mtg A Guide Self-Mill Commander — PlayEDH Milling, About | MAGIC: THE

While that's an ideal scenario, even just playing this for one or 2 mana is excellent, and casting it for the full four isn't completely embarrassing

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Basically, it leaves no hope for your opponent to do anything but concede

The enter and attack trigger on Krang & Shredder takes cards from opponents decks, and with a permanent leaving the battlefield under your control (easy), you get to play those cards for free on your end step

Lorwyns (2007) Card not found is a bit on the expensive side for this effect, but it also clashes, which means you might be able to use it again