Omnistone QOL Proposals

I think Omnistone should have the following 2 changes implemented:

1. The 3 Keystones you successfully activate the most often, with the exception of Dark Harvest, have 20 extra seconds to be used.

2. Dark Harvest unconditionally has 20 extra seconds to be used.

I think with these changes you can see an increase in QOL with this rune, since people who, for example, use Electro more than HOB will get more time to use it. As for the second change, I see Dark Harvest as the "pivotal" or "foundation" keystone since it is not only simple to use, but also affects other keystones directly. You should have more time to be able to activate it.

When this rune released, I thought it was a joke. However, now I think it's actually playable. I think there are not that many champions who would like to use it, but with these changes, perhaps there would be a few more?