Talisman on Howling Abyss
Okay, so up until this point, because both 
and 
are not available on Howling Abyss, we haven't had 
on there either. A few things that are important to mention about it.
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There is no jungle, and thus no jungle objectives like dragon or baron, on Howling Abyss. The Point Runner passive almost always up.
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Health regeneration is worth about twice as much on a map where you can't back.
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The Talisman of Ascension active is insanely valuable in a game where you are always looking to either set up your next team fight or escape it.
I think Talisman should just be removed from the Howling Abyss. We don't need gold generation items on there to start with, we get absurd passive over time gold and the Raptor's Cloak item is just too good a buy to pass it up. With over half the cost given to you at the start of the game and generating free gold for being near minions dying, you have the completed Talisman on your first back. It makes you harder to kill, it lets you dodge skill shots easier, it makes it easier for you to back off and heal off poke, and it gives you an insane engage.
The item is a fantastic update for Summoner's Rift, but there's a reason we didn't have Raptor's Cloak on ARAM before now. Just remove Talisman from the Abyss, we don't need it there.