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I'm pretty sure people have already made decks identical to this, but I plan on building this deck and kicking some ass. Basic premise is frozen aether to slow down your opponents a little, put in intruder alarm, then get out lullmage mentor. Use Summon the Schools and other creatures to get out enough merfolk to start using the Mentor's ability. Then when you counter a spell using it's ability, it puts a merfolk token into play and untaps all your merfolk, thus allowing you to do it again. So if you get this combination in play, you can infinitely counter spells. While amassing a large merfolk army. Also, with the Supreme Inquisitor, you can start exiling cards from your opponents library while they're helpless against your countering.
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