Bring back Ranger's Trailblazer
For those that don't remember this is the effects of Ranger's Trailblazer/purple smite back from season 5.
UNIQUE – BLASTING SMITE: Upgrades Smite to Blasting Smite. Blasting Smite deals 50% splash 「 195 - 500 」 true damage to surrounding monsters and enemy minions and Stun icon stuns all units hit for 1.5 seconds. When cast on a monster, it will also restore 15% of your missing health and missing mana.
Right now I feel as if a lot of the champs that were viable in the jungle in the past are no longer relevant and can barely be played in the jungle anymore. The new jungle is harder to clear than the old one. Ranger's Trailblazer was removed because it gave champs an insane clear speed, but now clear speed is still limited by camp timers so power farming is not as much of a problem as it used to be. Ranger's Trailblazer wouldn't be overpowered now because
and
would still provide more damage and be more useful for champions with already good clears. Bringing back Ranger's Trailblazers would also be great to help low elo/beginner junglers who need a little help clearing.