Talk:Senna/@comment-39500957-20191116010643/@comment-36380620-20191116012946

Basically, whenever a unit is spawned in the game, it appends an ordered list of units that are present. When a thing is done for ALL units, it'd just run down the list in order and do the thing to all units one after another. Senna Q only hits a small number of units, but due to a bug the order of it doing its effect to the targets is currently referencing that listing order. Since it only applies on-hits to champions, what matters is the order in which the players or (if applicable) champion clones are added/spawned to the game; the enemy first pick (in blind pick or custom games) will always be hit first if present (and if not, then the 2nd pick, and so on), and effects that go on cooldown after the first instance of them being applied are always dealt to him.

The 'Spawn ID' name is just an abbreviation for what it does, not an official term. I'm planning to remove it from the page once the bug is fixed.