Why not let enemy team pick up Bard's shine heals?
It offers a lot more counterplay, and makes playing Bard more interesting because you need to be strategic about when and where to use your shrines. Sounds a lot more fun to me!
For those not in the know:
"W: Caretaker’s Shrine
Bard conjures a health pack that gains power for a few seconds. Allied champions who walk over the pack gain health and a brief burst of movement speed, while enemies can stand on the pack for a moment to destroy it."