i got murked by a wicked combo from another oona deck at a 4 player table..

dark ritual
grim monolith
power artifact

infinite mana mill

just played an oona deck this weekend. here's the original decklist... i made some last minute edits at the table so i might have changed a few cards. but check it.

//General//
oona, queen of the fae(JP)
//Spells//
Bloodchief Ascension
raise dead
power artifact
Brain Freeze
Demonic Tutor
Animate Dead
Frantic Search(DE)
Yawgmoth's Will
Propaganda
Underworld Dreams
Zombify
Temporal Extortion
Damnation
Lethal Vapors
Pestilence
Rewind
Mindbreak Trap
Diabolic Tutor
Acquire
Mind Control
Conspiracy
Polluted Bonds
Time Warp
Rise from the grave
Archive Trap
Demonic Collusion
Tunnel Vision
Forced Fruition
Thought Reflection
Decree of pain
Time Stretch
//Artifacts//
Sensei's Divining Top
Sol Ring
Skullclamp
Grindstone
Feldon's Cane
Millstone
Howling Mine
Lightning Greaves
Doubling Cube
Mesmeric orb
Sun droplet
Whetstone
Font of mythos
Vedalken orrery (DE)
Whetwheel
//Planeswalkers//
Jace the mind Sculptor
Liliana Vess
Tezzeret the Seeker
//Creatures//
Dimir Guildmage
Sygg, River Cutthroat
Erayo, Soratami Ascendant
Kiku, the Nightflower(JP)
Priest of Gix
Lich lord of Unx
Lord of the undead
Mortivore
Empress Galina
Body double
Magus of the coffers
Thrashing Wumpus
Ob Nixilis, the Fallen
Endrek Sahr, Master Breeder
Nihilith
Extractor Demon
Szadek, Lord of Secrets
Memnarch
Kalitas, Bloodchief of ghet
Tombstalker
//Lands//
vault of whispers
seat of the synod
verdant catacombs
scalding tarn
drowned catacomb
misty rainforest
dimir aqueduct
underground river
watery grave
salt marsh
piranha marsh
jwar isle refuge
bojuka bog
swamp x8
island x7
Urborg, Tomb of the yawgmoth
Tolarin Academy

thanks for the tips, i will start doing the swap out and post an update after doing so. as for xathrid demon its not so much having the creatures to keep in him play for long its the whole fact that people see a guy his size and his ability and will immediately burn anything they can to kill him opening the table up for my general... i know thats a lot of weight to put on a card but it seems to work in my favor, i tend to throw big guys i dont mind hitting the grave out, and slipping something worst after everyone has done their counters and what not.

As you can tell from subject title im playing a   deck with  kaervek the merciless as my general, this is my first post to tmd so i apologize if i goof up formatting skills somewhere.
the deck is built for multiple players but can go 1 on 1 to other decks also. i usually play edh with the Richmond Comix crew... so a few might recognize the deck. i think my deck is pretty solid but would always love advice from others outside of my playgroup.
let me spit the deck out for everyone then i will go in to a few details why you see some cards in here including my alt win.

General
kaervek the merciless

Lands
12 swamps
8 mountains
arid mesa
scalding tarn
marsh flats
verdant catacombs
lake of the dead
kher keep
molten slagheap
akoum refuge
sulfurous springs
bad lands
blood crypt
rakdos carnarium
urborg volcano
graven cairns
everglades

Planeswalkers
Chandra Nalaar
Liliana Vess
Sorin Markov

Artifacts
vedalken orrery
Darksteel Reactor *
Candles of leng
skullclamp
Font of mythos
oblivion stone
sol ring
energy chamber *
sun droplet *
lighning greaves
Doubling cube
Rakdos signet
Crucible of worlds

Spells
bituminous blast
heat shimmer
grim discovery
promise of power
polluted bonds
bitterblossom
grave pact
terminate
diabolic tutor
kaerveks torch
dismantle*
Wheel of fortune
Demonic Tutor
Damnation
Blood moon
Underworld Dreams
barter in blood
yawgmoths will
cauldron dance
everlasting torment
impending Disaster
mutilate
Pestilence
animate dead
blood tribute
mana flare
blood chief ascension

Creatures
igneous pouncer
obsidian fireheart
malkir bloodwitch
crypt ripper
sootstoke kinder
vampire hexmage
malfegor
demigod of revenge
mortivore
reiver demon
deepfire elemental
magma giant
crypt rats
xathrid demon
ob nixilis the fallen
defiler of souls
hellhole rats
shivian dragon
doomed necromancer
halo hunter
darksteel colossus


First let me go over the alt-win something i saw back in miridon in a mtg article   using darksteel reactor/dismantle.  that alone is an awesome way to spice up colossus or to get me some  life counters on sun droplet but the other way is to take a big hit to the face and then blow up sun droplet moving all counters to reactor for the win. It's kind of a cheap win, but just an opt out.  energy chamber is just a way to speed up the counters not necessary for the 3 card combo.
The planeswalkers, i just love an ability off each
Sorin for the fast life reduction and the drain
Liliana for the tutor effects, Liliana's resurrection is not always good my   deck has phage in there just to ruin peoples parades.
Chandra  for the 10 dmg to  player & creatures
as for the other cards,
i have  pestilence/crypt rats/mutilate for the massive token dumps i have seen hit the tables.
bloodmoon to lock down the people playing 5 color decks who tend to live off non basic lands (it does cripple me some but i have enough swamps in the deck that it shouldn't lock me down)
a few ways to kill generals and a few ways to bring stuff back from the grave.

thats all that really comes to mind at the moment please shoot some advice maybe card swapouts or other combo setups
thanks in advance -jb