On the topic of alternative playstyles

What would you guys think about some specific jungle-only buffs to create alternative playstyles (AKA bonus damage/effects vs monsters and only monsters) for some champions that're not doing too well in their traditional roles/lanes?

For example, for Quinn, bonus max % HP damage from harrier (her passive) vs large monsters (and only large monsters) to assist clearing. Or for Lissandra, a knock back effect and a little bit of healing (like Graves's autos) or reduced CD and partially refunded mana (think similar to Evelynn's Q in the reduced CD) if the first target Ice Shard (her Q) hits is a monster.

Maybe for someone like Darius, healing off large monsters with his Q? (Maybe at a reduced amount?) Or allowing Jhin to jungle viably by giving him significantly increased damage from his fourth shot against large monsters up to a capped bonus damage limit?