User blog comment:Vitios/Vitios, the Greedling/@comment-83.25.89.146-20130107191650/@comment-5663184-20130107201343

The E spell is a skillshot. At maximum rank and maximum attack speed, the E only gives 225 gold total. Subtracting the cost of the ability, the gold gain is only 125. You also have to consider reaction time and aim. Even if the spell hits an enemy, you're only likely to get around 60 or 90 gold unless you react very quickly.

As for the W ability passive, an enemy champion would have to have 2000 gold for Vitios to gain 1000, as he receives exactly half. You also have to consider the fact that, in order to get this gold, Vitios would have to first kill the enemy champion. I don't think it would force players to spend gold, as it's fairly uncommon to see players carrying around huge sums of gold. However, ~1000 gold is a fairly normal amount to be carrying,  and in the end Vitios would be receiving 500 + ~300, adding the passive and that champion's bounty. It's a little much, so I do think I'll lower the percantage to ~30%.