What if Twitch Q "smelled" out his enemies

Similar to Warwick W When Twitch enters stealth anyone withing a radius of 3000 range (Might be too much but willing to change numbers) are marked with a translucent icon above them as Twitch gets closer to his enemies the mark becomes more transparent. If multiple enemies are within the range then multiple enemies will also be marked. Thoughts? This will still keeps Twitchs ability to assassinate someone, but at least it'll give his enemies a chance to react and know what's coming so they can prepare themselves, similar to when Rengar ults.
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