​​ Shield trigger (When this spell is put into your hand from your shield zone , you may cast it immediately for no cost .)

​ Galaxyshield (You may pay instead of the cost of using this card . If you do, put this card into your shield zone face up .)

​■ At the start of your turn , if this spell is face up in your shield zone , cast it with its cost paid.

■ Choose one of your opponent 's creatures and tap it.

■ Draw a card .