Elixir of Agility
250g
CritAttack SpeedConsumable
What it does
Click to Consume: Grants DATA_PENDINGAttack Speed and 15% Critical Strike Chance for 180 seconds.
The gap above is Riot's. The client's own tooltip ships with an unresolved placeholder here, and the amount is not in the game files at all - item and spell data are no longer shipped as readable data, only as compiled script that carries no values. Rather than guess at it, the blank is shown as a blank.
Recipe
Basic item - no components. Bought whole for 250g.