Kog'Maw's Q QoL change!
Kog'Maw has a base of 500 range with his W increasing it to 630/650/670/690/710. This means that his auto-attack range during long-range mode is 5/25/45/65/75 units longer than his Q range.
How can Kog'Maw be expected to use his Q when it becomes quickly out-ranged by his auto-attacks. Kog'Maw cannot afford to be close and has to keep maximal distance from his enemies. Tristana's E hits from her auto-attack distance and so should Kog'Maw's Q.