How do I equip the Riven Dawnbringer Border?

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Riot...I want my tokens back :D

There was no asterisks and fine print saying I need the skin to have the border.

Had I knew that, I would've use my 280 tokens to get key fragments :(

SAME although for skins.

SAME!!! I didn;t know that!! I played a game today and was wondering where my border was. I didn't know if I needed the skin. Heck I don't even have riven

I agree! I just spent two straight weeks playing missions so I could get a cool looking border. I don't even play riven. Heck, I'm an Akali onetrick. There was nothing on the event page that even hinted at the border being exclusive to any given champion or skin, and I find it plainly ridiculous that such a restriction would be neglected. I thought Riot was making custom borders a thing, and I was willing to grind up 280 tokens (enough for two of those even orb things, which could have held an exclusive skin) to do it. Now I have nothing to show for it. I can't be reimbursed for my time. Riot should seriously consider making this something that can be applied universally, since I'd surmise that the majority of people who ground missions for two weeks aren't riven mains and many don't even have the skin. I feel gypped.