I believe that it depends more on your temp comp than on your Olivia.
If you're focused on the player phase with a more offensive team, Wings of Mercy is the better option. It's also almost always the better choice in arena defense.
If you're focused on the enemy phase with a more defensive (i.e. baiting) team, then renewal is probably a solid choice. I'd imagine that it's usually the better choice in events like the Tempest Trials or Chain Challenges.
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