I can't help but wonder how the game would go if Regen Globes were added

Regen Globes in HotS are a neat and interactive way to give every hero some lane sustain, and I can't help but wonder how they'd work if added to League. Of course, they'd need to have a LOT of changes, and would need to accompany a yearly change, but I can see them fitting in if done properly.

If they were added, I'd do the following to tweak them:

• Change them to restore a % of your missing health/mana instead of maximum HP/MP. This makes them more of a comeback recovery mechanic rather than a top-off thing.
• Make them spawn from Cannon Minions, but only if you score a last-hit on them.
• Make them only restore the player who picks it up, not nearby allies as well.