#Testing Protection
#702.16c A permanent or player with protection can’t be enchanted by Auras that have the stated
#quality. Such Auras attached to the permanent or player with protection will be put into their
#owners’ graveyards as a state-based action.
#
#702.16d A permanent with protection can’t be equipped by Equipment that have the stated quality
#or fortified by Fortifications that have the stated quality. Such Equipment or Fortifications
#become unattached from that permanent as a state-based action, but remain on the battlefield.
[INIT]
FIRSTMAIN
[PLAYER1]
hand:Pledge of Loyalty, Shuko, Holy Strength, Shifting Sky
inplay:Crimson Acolyte
manapool:{W}{W}{W}{W}{U}{U}{U}
[PLAYER2]
[DO]
Holy Strength
Crimson Acolyte
#crimson acolyte becomes 2/3
Shuko
Shuko
Crimson Acolyte
#crimson acolyte becomes 3/3
Pledge of Loyalty
Crimson Acolyte
#crimson acolyte becomes 2/1 since you have white permanents, pledge of loyalty grants protection from white
#holy strength is put into the graveyard as state based action :)
Shifting Sky
choice 0
choice 2
#after casting shifting sky, choose the color red, and all nonland permanents becomes red
#since shuko becomes red and crimson has protection from red, it will be unattached
#as state based action, pledge of loyalty stays on the creature :) 
next
next
Crimson Acolyte
next
eot
[ASSERT]
UNTAP
[PLAYER1]
inplay:Crimson Acolyte, Pledge of Loyalty, Shuko, Shifting Sky
graveyard:Holy Strength
[PLAYER2]
life:19
[END]