invasion cards mtg march of the machines Ikoria [March of Machine] choose an opponent to protect it Invasion of Gobakhan // Lightshield

Mystical Tutor, Enlightened Tutor and Gamble all fall under the limit, and if you've got your Leyline of Anticipation or Vedalken Orrery on the field, you can even mutate Vadrok at instant speed and throw any of a number of counterspells onto the stack

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If you like this deck, you can buy all the upgrade singles at the same time as the preconstructed deck, saving you time as well as money

Although discarding cards and doing direct damage are somewhat at odds with each other it winds up making the card playable in most archetypes

In Commander, especially, this approach scales well