Talk:Twin Demon Dragon, Zahhak/@comment-23973683-20150330204801/@comment-24965906-20150330212957

It depends, but the ideal number would be 3. Simple reason, is that Dragon Throne is impervious to the current forms of removal once it hits the field. After that, it's just only viable for searching Azi Dahaka, you'll probably only play Azi once, therefore that justifies 2, and a third for security.

A fourth is if either: a) The ratio between Throne/Azi and rest of deck is very high, or b) You have horrible luck getting Azi or Throne. Either way, using at least 3 is a good estimate, while a fourth may become a Dead draw.