Possible changes to Trackers Knife since removing it was a terrible idea

Replace the two ward charges with either red trinket (single or multiple charges depending on a cooldown not basing to recharge) or a passive like duskblade that disables wards when spotted by them. This in theory will allow the warding to be dictated by the cooldown of yellow trinket not if the enemy team red trinket / control wards them away starting off the cycle of basing to replenish wards.