Exalted Cathedrals - 60

I miss exalted, it was a fun mechanic idea. A few thoughts to help this build out.

Splashing blue for 3 Mana Leaks really isn't worth it. If you're worried about nukes, you can get around within white by just going with Make a Stand, which costs 1 more but is the right color and opponent can't pay 3 to get around it. Plus it doubles as a conditional game winner buff, so that's nice. If you're running the counters as a generic 'no' to opponent's plan, that's sort of outside what this deck wants to do. You want to dump your mana each turn fielding a critter to pump the exalted, so running counters just slows that down. You want to outrace and outmuscle opponent rather than denying opponent resources. This also lets you pull out your Glacial Fortresses and keep things consistent. You could sub in Shineshadow Snarl on the cheap and your color consistency will be tip top.

A few card choices are just worse versions of better cards that are all cheap. Faith's Shield is an 'ok' counterspell to interference, but Surge of Salvation does almost the same thing except with all your critters and you on top, so you can use it to stop burn damage if necessary, as well as protecting your critters from spot removal.

Nighthawk is nice, and ideally a great attacker, but it's a 3-drop without exalted, and you'd rather run something faster that ups the exalted count. I'd consider running Akrasan Squire over it. Much less sexy, but it's THE turn 1 drop you want in this build, as it swings for a minimum of 2/2 on turn 2 with a hopeful 3/3, which is a hell of a fast damage clock to deal with. It also lowers the mana curve quite a bit, which will be helpful, as you ideally want to be playing spells turns 1-3 consistently so you can build your exalted count and be swinging for damage, putting opponent on the backburner.

Appetite for Brains is extremely hit or miss, and is a potentially useless topdeck. I'd personally rather run something like Vanishing Verse and just deal with the threat once it's fielded, running the risk of that being too late balanced against the overwhelming efficiency and removal power of exiling most relevant permanents for 2 at instant speed.

Silent Arbiter is a cool idea, but would probably work better in the sideboard, as you probably won't need him when you're swinging with your single pumped up weenie anyway. I'd personally rather run 2 more Aven Squire, which cuts the mana, ups the exalted cost, and gives you an exalted flyer to play around with.

Mentor of the Meek, on the other hand, I had never considered for a build like this. It's certainly not a bad idea, especially when it gets tripped by almost 1/3 of the deck. My gut says let it run and see how it works. The 3-drop + mana eating cost is a pain, especially since it doesn't up the exalted count (throwing off your turn 3 drop potentially), but it's a good topdeck and will probably pay dividends in the mid game, so I say see how it goes.

Just some thoughts.