46772449 励輝士 ヴェルズビュート

http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=13019&keyword=&tag=0
The damage changing is part of the effect, so it can be negated.

99070951 サイ・ガール

http://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=13007&keyword=&tag=0
The owner can confirm the banished card.