Well I played against a player Mopop and he played Ysera at 7 mana against me. The card was not created by Unstable Portal as it would show "Card created by unstable portal" (I triple checked) and I recalled he did not play Unstable Portal the whole game. I did not have a screenshot but I will next time after discussing with a friend Seannie. I almost fell off my chair when he played Ysera the turn I was going to play AOW with a Senjin Shieldmasta on board that turn. Needless to say I lost that game. I did not mind losing to a better play or I misplayed but this was so cheese...
Update: Looking around the forums, it IS possible to play Ysera at turn 7 by playing Dragon Consort earlier. "The next dragon you play (in the game, not only in the turn) costs (2) mana less". Well, I should have paid more attention... He was legit.
*Update: He was playing Mage and Dragon Consort was a Paladin class card, so still not solved.
Thanks to Senfglas Legendary Grim Patron Warrior deck, Warrior can be finally enjoyed by poor players like me. In the past, you will need at least a few high mana legendaries to at least play competitively for Warrior. With all the cards obtained from Nax and BRM, I was able to modify the deck a bit to enjoy playing Grim Patron Warrior. This deck has an inherent weakness, especially if you do not have enough threats like Frothing Berserker and Gromish Hellscream for the opponent. AOE - Auchenai+CoH, Velens+Holy Nova, Hellfire, Flamestrike, Shadowflame, Spell damage+Lightning Storm, Bladeflurry, Brawl+Weapon, Wild Pyromancer+Equality, Equality+Conscretion, Lightbomb.
Anyway, I modified the deck a little bit to include the free dragon eggs from BRM to counter the aggro decks since Unstable Ghoul blocks them and activates the eggs at the same time. I am missing a few key cards like Cruel Taskmaster and most importantly, Battle Rage (substituted with Slam) and Frothing Berserker (substituted with Kel'Thuzad). I also put in Emperor Thaurissan. I can only put in the free Shield Block but what I rather have are Shieldmaiden and Shield Slam. Oh well, let's grind them in arena or buy card packs with my gold which is currently almost at 1.4 K now.
I have included 2 links to Grim Patron Warrior decks.