Talk:Varus/@comment-27.99.100.43-20120516060539/@comment-4499980-20120517023556

Here's a key concept for questions like these.
 * Autoattack modifier: behaves as a normal autoattack (life steal, on-hit effects, crits) along with the ability additional effects. You'll recognize this type of ability the tooltip will generally say it activates "on next hit" and it usually resets the attack timer.
 * Regular ability: does not behave as an autoattack at all (no life steal, no on-hit effects, no crits).
 * This kind of ability procs spell vamp and rylai's slow.
 * This kind of ability cannot crit unless the tooltip explicitely says it can.
 * This kind of ability will only apply on-hit effects if the tooltip says it can.
 * Remember that abilities that apply on-hit effects still cannot crit unless it is mentioned in the tooltip.