Oona's Strikeforce is a fast, hard hitting assassination deck designed to deal with your opponent as quickly as possible. Most of it's creatures have low toughness so you want to avoid getting into direct fights with your opponent's creatures. To help with this, nearly every creature has some way to avoid blockers and go straight for the all important jugular. In lieu of having a large variety of creatures, Oona's Strike Force is just that: A small task force of Rogue's that can be reliably drawn upon and who all synergies well together. Each of them support each other and you'll rarely see a successful game where you have a single creature standing alone. Because of this unity, combined with their low toughness, you're going to want to avoid blocking as much as you can to avoid losing your creatures. This means you will likely be taking more hits than the average deck (Don't worry, with powerups like Oona's Blackguard and Strinkdrinker Bandit, and the ever important Prowl mechanic letting you summon your best monsters cheap and early,you'll likely be doing THRICE as much damage to your opponent on the counterattack), to help with survivability, cards like Morsel Theft and Dismal Backwater boost up your life-points, and Creeping Tarpit can play a limited defensive roll.
Ultimately though, YOU want to be the one forcing your opponent on the defensive. Let him try to hide behind his wall so you can sneak through and stab him while he sleeps. Oona's Blackguard's discard effect helps keep your opponent on the defensive as you ruin his carefully thought out strategies as he is forced to discard his cards, and coupling it with the one-two combo of Shrieking Affliction and Waste Not gets a definite psychological advantage as your forces keep mounting.
Still, you may evetually run into a wall that you CAN'T slip past, which is where the field nuke Languish comes in. You're creatures (Especially with Prowl and Frogtosser Banneret) are cheaper, and easier to summon than your opponent's, so a field wipe will likely hurt him more than you.
As you've probably noticed, the signature mechanic of this deck is Prowl and almsot every card is a rogue to benefit from it. It is they key to the deck's speed.
Your finishing move is of course the superpowered Notorious Throng. While it is costly, if you can get it out with it's time looping mechanic, it will almost always secure you the win.
This deck isn't perfect though. Along with the aforementioned fragility and weakness to an even MORE aggressive deck, it's nature as a Blue/Black deck makes it almost helpless against Artifacts and Enchantments.
