User blog comment:Krufix/Pink ward mechanics rework/@comment-121.54.48.5-20120415093218

well i think one of the best things they could do is just to shorten pink wards duration to say just 10-30 seconds. this would give support champions enough time to deward or check stealth units to counter them. also, i think it would be great if they would just "detect" stealth units if they are already in 100 range of them by seeing them as "blurred". at least this would give players enough time to react to the gank or scout and making stealth users be more cautious into scouting and ganking.

for oracles, i think it would be better if it has a duration or a small debuff if it will be still permanent until you die. probably a small movement speed debuff for a gamble of removing map awareness to the enemy team and revealing stealth units is probably worth making.

for your item idea, i think it's best if it's like Rod of Ages. at the start, you can only see stealth units by "blur" and untargetable unless it's an AOE skill. but as time goes on, it makes them more clear and when it reaches a certain point of time, you can finally target them.