He's playable, no doubt. Even decent in regular combat for that matter. Though I wouldn't at all center a deck or a theme on him, nor do I expect anyone beyond casual players to consider him playable; when the smoke clears, he's a weenie with a cool looking ability - and no one will know why oh why they thought he was anything more; now if this was an enchantment it'd be different, but he's a 2/2. I don't like such questionable power, not even in my casual decks (I build casual decks to win) and would simply rather supliment the advantage he may offer with something more assured, like Night's Whisper. Besides being a creature, his ability is too conditional; against decks that don't pack that many creatures he's rather useless, even in combat. And against decks that do pack creatures, there are two types: they're either weenie rush creatures or slow/chump control creatures (i.e. Ravenous Rats, Triskelion). In the first case the opponent will pack enough creature removal to make sure his creatures go through; in the other case the opponent will pack some removal anyway because they're playing, duh, a control type. In both cases Toshi is lame. If this is Wizard's idea of a playable casual card, then they're mistaken. I must say, though, they know how to invoke random excitement... Now Fumiko...she I would keep a close eye on. I don't play Red, and really don't care for Samurai, but it's easy to notice the sheer power seeping through this lady. And the Ninjas? A joke to be revealed, that's all it is. Aside from the usual eye-catching card or two which would represent such limited mechanics, Ninjas will sink faster than "morph" did...only the Ninjas are a lot more limited and a lot less interesting.