Forum:Tiras vs. Negation/Destruction

Tiras, Keeper of Genesis's effect states "This card cannot be destroyed by card effects" but only if it has XYZ material. So I have a couple questions.

1) When an XYZ monster is summoned does it have its XYZ material?

2) Because Tiras cannot be destroyed by card effects do cards such as Solemn Judgement and Solemn Warning, which negate AND destroy, affect Tiras upon being summoned?

3) And all in all, do cards which negate and destroy summons affect Tiras' summon?

Thanks Poco Ocho (talk • contribs) 18:51, August 8, 2011 (UTC)