Evan, you should make it and crush face with it. I never even thought about how top was harder to deal with. In playing top no ones ever tried to destroy it so I almost forgot its because its hard to kill, not because its irrelevant.
Problem Cards
Iona, Shield of Emeria means count your land, if it's less than 9, scoop and go to the next game.
Gaddock Teeg means you can no longer cast any sneak/pyromancy effects in your deck.
Matchups (Cards that influence them)
Bad Matchups (Number of 'stompy' artifacts): Absolute worst matchup is reanimator. As long as they're playing an Iona that is, I would never play reanimator without an iona so I just expect all my opponents to have one. Mono blue fringe decks are pretty troublesome too. Something like Hivemind, Dreamhalls, Omniscience. Anything that can kill the turn it goes off AND use counterspells/discard is our hard matchup. Sneak/Show isn't as bad because they have to attack and we're just as prepared to block as we are attack. I hate sitting down across from TES, Spy, Belcher, and High Tide. Those are the decks I expect to run into in the current meta.
Neutral Matchups (Number of 'moon' effects): 3 color tempo/control. RUg, BUg, Junk, Esper, Jund. The ones playing delver and the full suite of soft counters are the hardest. If they flip a turn 1 delver with protection you're in trouble. If they can't pressure you then their one FOW and/or Discard spell is never enough. The Blade control decks are much easier than the delver tempo ones. KOTR into wastes isn't as bad as a lot of counters since we have the guides and rituals to supplement mana.
Good Matchups (number of rituals and draw effects): Burn, Elves,, Goblins, D&T. When it comes to monocolor we're the fastest. Decks that try to grind out the opponent or go over the top in the long game are pretty easy too. Anything with punishing fire, veteran explorer or goblin bombardment, usually don't last long enough to get get their engine running.