Thanks a lot for the feedback.
Just to clear things up, the keyword Summon Dervish is not "opening gambit: summon a Wind Dervish".
@oranos I intended to impede opponent's movement by that ability. But yeah, now that I think of it, the fact that my thing disrupts movement in the opponent's turn is a pretty bad idea.
@degenerator which part do you mean the "last part"? The "summon a wind dervish on damage part"? Kinda feel like it's the essense of this submission.
I am a bit worried about it being too strong also, but considering that 1.it's not as good as a late game draw, 2. requires some setup and most importantly 3. Obelisk Vet isn't that strong now, I feel like this card's balance is fine as it is (in the same fashion that Falcius is fine as it is).
If I have to re-balance it though, I'll probably remove its "Obelisk" aspect, and make it as something like "1 0/4 Rush, Summon a Wind Dervish whenever it attacks".
@genkei Doesn't that make it exactly a Nimbus?