Forum:D-HERO Diamond dude vs. Phoenix Wing Wind blast

Hello!

(1) Here is the scenario. I summon a diamond dude while having a face-down Mirror Force, and I try to activate diamond dude's effect while my opponent chains Phoenix Wing Wind blast to spin my back field Mirror Force back to top of my deck? Can I declare priority or will my diamond dude just hit a useless mirror force? Also, what happens if my opponent spun my diamond dude instead of the back field?

(2) When my face-up Giant rat is destroyed by battle and I try to pay 1000 to summon Green Baboon,Defender of the forest from my Graveyard, can my opponent chain D.D. Crow to remove Baboon from the graveyard on the battle(damage) step?

(3) Can I activate Green Baboon's effect if a Sangan is destroyed and sent to gy while DNA Surgery is already face-up on the field and its controller declared Beasts? Because Sangan's effect is mandatory and Baboon's is optional. Maybe Baboon's effect will be killed by wrong timing.

Thanks a bunch!