Multiplayer Deck Strategies

[Xavious]

Lately at the local game shop we've been doing multiplayer free-for-alls. I've been entertaining methods of winning over than amassing tribal armies, as is the norm for the past few games. My current deck is a U/G deck that alters the battlefield to my favor with Stormtide Leviathan.

One thing I was thinking of changing up in this deck is to take out the flyers and throw in Gravity Well. However, with both the leviathan and Gravity Well in play I'm not sure how that would work. Stormtide states that only Islandwalk and flying creatures can attack. Gravity Well states that when a flying creature attacks it looses flying until end of turn. Am I right in assuming that with both of these in play only creatures with Islandwalk would be able to attack?

My second multiplayer deck idea is a mono-blue Mill deck. I've scrounged around and I've found a few cards that may make such a deck work.
Memory Erosion
Wheel and Deal
Forced Fruition
Mesmeric Orb
Temple Bell

And for more precise milling of a single target:
Jace's Erasure
Tome Scour
Archive Trap
Traumatize

Given the high cost of some of these cards I've thought of splashing a bit of green for ramp. Any suggestions on how to make this sort of deck work?

[browncoat]

I would suggest getting everyone to start playing EDH as normal multiplayer can get boring. Wait that's not what you asked was it?

To answer your question about gravity well and the leviathan: The creature should be attacking even though it lost flying. It had flying when it is declared attacking which satisfies the leviathan then the gravity well strips it of flying.

For the mill deck I would recommend adding dreamborn muse for even more obnoxious milling. Prosperity would also help keep people with huge hands and smaller decks. As a deck you probably don't need the single target mill as much as the multiplayer mill to annoy everyone. Keening stone will also help capitalize on the huge graveyards people develop. If you really need to murder people with mill Oona, queen of fae is fun as it also gives you some attackers/blockers.

[Xavious]

Ah keening stone, I don't know how I could have forgotten that one (aside from it being in a set that provides the solution to mill decks).

I will admit that EDH is an interesting format, however I'm still plenty amused by the multiplayer we've been doing. Somehow the first multiplayer match we ran everyone, other than me, had a tribal deck (2 goblins, one elf, one myr, one angel, one sliver, and one plant) and so far that's the theme its stuck to. Figuratively speaking, by mid-game the plant and myr decks were playing the parts of the U.S and Russia during the cold war and my leviathan (protected by asceticism) was the only thing protecting everybody from the fallout of those two. This lasted until the myr deck played Eldrazi Monument and wiped out the plant, elf, and my own deck. In the aftermath he was wiped out by everyone else and it was down to goblins, angels, and slivers. I missed most of the remaining match but slivers ultimately won.

Long story short, with eight players its random enough to continue being fun after repeated games