Seeing how there are no Dominion Naut builds, I decided to put my 2 cents in.

This build works great for an AD heavy enemy team, but still has some viability for mixed teams.

As always I'm open to comments, opinions, help, etc.

For runes I use:

Greater Mark of Magic Penetration x 9
Greater Glyph of Magic Resist x 9
Greater Seal of Armor x 9
Greater Quintessence of Ability Power x 3

This give some great early AP, Armor, and Magic Resist which is perfect for taking top tower.

My mastery tree is a bit out of whack, but works so well with this build.

I don't really have an explanation for what I chose, just kinda winged it and it stuck.

Ghost and Garrison is my favorite combo for summoner spells, but Heal makes a good secondary or Flash can replace Ghost.

Skill sequence is definitely depending on what champions you're playing against and who you're playing with.

I tend to use Dredge Line as an escape and an initiator so I max that first, followed by Riptide, Depth Charge, and lastly Titan's Wrath.

This build is basically to tank the hell out of towers and AD Heavy champs, so I stack armor as much as possible.

Ninja Tabi is a great first item, plus a Cloth Armor will give you about 80 armor at game start.

Grab 2 Health pots and 2 Mana pots for some survivability.

Take that Cloth Armor and turn it into a Thornmail. This will shut out most AD champs around level 6 or 7, which will definitely give your team a huge lead.

You're going to run out of mana real fast, so a Glacial Shroud turned into a Frozen Heart will give you even more armor, a solid mana boost, and crazy cooldown reduction, which is also a key to this build.

The next 2 items are interchangeable.

I choose a Sunfire Aegis for the extra armor and AoE damage, a Force of Nature for those pesky mages and health.

My last item isn't really set in stone, kinda changes with the game, if it goes on for that long. I go with a Rylai's Crystal Scepter for the health boost and some AP for shutting down a team.

Pros:
Tanky as all hell
Great initiator/disrupt
Most people don't know how to counter him
Focused a lot

Cons:
Slow
Focused a lot
Not much damage output

**Being focused a lot can be good or bad, depending on what you're trying to achieve.**

Be the guy to grab a Cait out of her turret for the kill.
Be the guy to ult the champ in back and knock-up everyone in front of them.
Be the guy everyone on the enemy team hates.
Be the guy to cap everything.


Just don't be the guy that gets mad when he has no kills.

When using Garrison, make sure you activate it after you grab your desired target. A well placed Garrison can make a team fight so much easier and faster. 8 seconds is a huge window to get some kills and a capture.

Basically Nautilius has an amazing amount of potential in Dominion.