Forum:Red eyes z. dragon

I was reading the ruling for Red-Eyes Zombie Dragon when i found:

If "DNA Surgery" is activate and declaring "Zombie", when a monster whose Type is originally non-Zombie battles with "Red-Eyes Zombie Dragon" and is destroyed, then the effect of "Red-Eyes Zombie Dragon" cannot be activated.

I just wanted to know why.

Endymion the Master (talk • contribs) 17:12, April 16, 2011 (UTC)