[info]Sacred Phoenix of Nephthys
If this card is destroyed by a card effect, Special Summon this card from the Graveyard during your next Standby Phase. If you Special Summon this card in this way, destroy all Spell and Trap Cards on the field.
Magic Reflector
Select 1 Spell Card that remains face-up on the field and put 1 counter on it. If the selected card is destroyed, the counter is removed instead of the card being destroyed.[/info]Sacred Phoenix of Nephthys for example. When she's destroyed by a card effect, it's mandatory that she return and destroy all Spell and Trap Cards on the field. Now let's say, for the sake of argument, someone placed a counter on Field Barrier using Magic Reflector, protecting it from Phoenix this turn. When Phoenix tries to destroy Umi, it will be protected by Field Barrier.
I'm sure there's a more straightforward example, but that's all I could think if at this time of the morning. :skull: