Changing DestinyEdit
"(The attacking player chooses to either increase his or her own Life Points or inflict damage to the defending player.)"[1]
"Possession" also counts as your monsters whose Summon are negatedEdit
"Whether by Torrential Tribute, Atlantean Marksman, or even Solemn Warning on their Normal Summon, the Hands will still be able to activate, provided that there’s a target for their destruction effects."[2]
Flip Summons when a face-down monster is attackedEdit
"There is, however, one commonly overlooked fact about the Sphinx which could help you: It only activates when it is Flip Summoned. That is, NOT when it is attacked!"[3]