Q: If I send my "Waking the Dragon" for the effect of the opponent's "Cyber Angel Izana", will Waking trigger? A: No, because a Spell/Trap Card sent to the Graveyard when resolving the effect of "Cyber Angel Izana" is not considered to be sent to the Graveyard by a card effect. Therefore, even if you send "Waking the Dragon" to the Graveyard, you cannot activate its effect.

Q: If I send my "Waking the Dragon" for the effect of the opponent's "Cyber Angel Izana", will Waking trigger? A: No, because a Spell/Trap Card sent to the Graveyard when resolving the effect of "Cyber Angel Izana" is not considered to be sent to the Graveyard by a card effect. Therefore, even if you send "Waking the Dragon" to the Graveyard, you cannot activate its effect.