Well akshually pushes up glasses it's not exactly the same but if they made this card they'd probably make it read "You have protection from wordy (Something is wordy if it has four or more lines of rules text.)". Gotta use the key worded ability.
I'm not an mtg person, would protection mean only enemy spells? The original is your own too. Would be cool to have a board wipe that couldn't affect you
No, protection applies to everything with the quality.
Protection from [quality] (This can't be blocked, targeted, dealt damage, enchanted, or equipped by anything [quality].)
Protection doesn't mean indestructible though. A spell like Wrath of God would still destroy a permanent with protection from it, because it doesn't target or damage the creature.