Forum:Some questions...

Hi guys I have some questions:
 * 1) If Mausoleum of the Emperor is on the field and a control 1 monster, can I tribute that monster and pay 1000LP to Tribute summon 1 lv7 or higher monster?
 * 2) Does Sakuretsu Armor really target? Because I dont select the target, its always the attacking monster.
 * 3) When I special summon a card like Felgrand Dragon from the graveyard with Shallow Grave, must I declare the monster to activate its effect when I set the card or when I flip it up?