User blog comment:Deathkin12/Teaser Theory/@comment-5588011-20151230010352

I personally think it's like a nightmare for them - reminding them of what they've lost. Jhin could be some monster trying to remind them of their resolve, of something they've given up in exchange of their strength.

For Zed it's his eyes, well more specifically the idea that he's become a shadow and can't be seen.

For Sona it's her vocal chords - her inability to talk.

For Garen, we don't know much, but the gif's focus is on his eyes, and I think it's either he lost his sight, but since there've been no signs of this. I think is more likely, loss of his tears, a metaphor to overcome his obstacles and not weep for his losses, an example of his resolve to Demacia and to his subordinates.

For Vi, we can't see the gif probably but I'm guessing it's her arms from her lore, or possible her heart. I'm going for the idea that she has amnesia, since I totally ship ViXJinx as sister, and the fact that she's now a Piltie. Ekko obviously knows Vi and Jinx, so they must've been close. The fact that Vi apparently doesn't recognize Jinx supports this too. I'm assuming her heart was shot because she possibly went to Piltover for a better future for her Zaun friends - but undergoes amnesia and gets rekt.

There's still the connection to why Zed was shot with flowers and why Sona has butterflies instead, why Garen has green crystals (TaricXGaren?) and why Vi has flowers. But maybe that's meant to be revealed later on as part of their lore.

I'm guessing that upon being shot, the champions remember something about themselves, and that leads up to some intense events later on. I mean, Sona's lore is kinda dull at the moment, and no champions have a personal connection with her in there lore, and we can all imagine the poopstorm that would come up if Sona's lore was suddenly changed. So I'm guessing this is Riot's way of building on-top of previously existing lore to add more depth to DEMACIA dude, mute maven, sly shadow and um, smash smash.