So I was kinda doing some thinking looking at this image and I have somewhat of a suggestion that would have won. Instead of Alric go Bortus for the -1 magic and use Albatros, Seamonster and Pixie.In the 1st round the Albatros would take the 2 damage from Oshannus and Seamonster would suffer 1 damage from the pixie and land 4 damage on Oshannus and your Pixie would do 1 more damage to it. Next turn your seamonster should be down to 4HP before it gets to attack and kill Oshannus (Pixie will have already done 1 damage to it leaving it at 4 HP). And everything else wins. However you would have to be decently lucky not to miss.