According to MTG Hall of Famer Frank Karsten, versus a typical Pioneer mono-red deck, Sphinxs Tutelage and The Water Crystal have an 82.6% chance to repeat the process 7 times, which is enough to mill your opponents library
A 2/5 double strike is already a great body for 5 mana, and in x spellslinger decks, this becomes a 4/7 double strike or greater
Bring him out with Air Raider on the opponents turn to recover a fallen Machina, then do the same on your subsequent turn with Irradiator, then do the same the next
He doesn't really need that, though
Lets break the bank and take a look at the top 100 most expensive cards in Magic , shall we
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