change its battle position, and if you do, negate its effects until the end of the turn
Some of those dual sets include To Have Seen the Battle Rainbow [SM3H] / Darkness that Consumes Light [SM3N], Skyscraping Perfection [S7D] / Blue Sky Stream [S7R], and Snow Hazard [SV2P] / Clay Burst [SV2D]
If a creature has protection from everything, you can use sweepers
This is a pretty low powered card but it is a solid inclusion if you have strong white mana support
A loose guide for grading whitening would be something like: No whitening - GM 10 1 to 2 spots of whitening - 9 Mint 3 spots of whitening - 8 Mint/Near Mint 4 or 5 spots of whitening - 7 Near Mint All 4 sides have whitening - 6 or below Color boarder cards have a hard time gem minting compared to cards with white/grey (think modern) borders since things like silvering/whitening are much less noticeable
If you do, copy that spell, and you may choose new targets for the copy