Usually, the red/black deck either blows its hand and starts top-decking or it has to rely on its black side to spend life to draw cards
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The creature used in Voltron decks that are loaded up on is often your commander as, it is easy to get onto the battlefield, and you almost always have access to it
But with Sneak, you can return an unblocked attacker to your hand and instead pay two mana
Mikey would easily join Frodo, Adventurous Hobbit, and Sam, Loyal Attendant, on their journey, feed Ygra, Eater of All, or give options to Gyome, Master Chef
Warping lets you cast a spell quicker than normal, but with the cost that it'll disappear at the end of your turn