A lot of people seem to find his ability to protect his ADC frustrating to play against. In the current state of things you are forced to burn abilities on a tank to get to the ADC. Not only that, but this particular tank has theoretically a second health bar because of his E.
My solution to make his W more interesting and fair while still keeping it usable.
A new attribute to his W (Devour) called **_'gut punch'_**.
If a certain amount of _**health**_ damage is done to Tahm Kench (this amount can scale with levels, max health, bonus health whatever) he is forced to _**spit out the friendly champion**_, who is then _**slowed**_ (debatable).
This change will give opponents an incentive to damage Tahm Kench to get to his ally AND be a more realistic goal, as opposed to burning through 2 health bars as said before.
This change will be more interactive to Tahm. Since the opponent has to do _**health damage**_, Tahm has the option of giving himself a temporary shield with his E to give him a bit more time before the enemy does the required health damage. This way he has to decide whether to use his grey health reserve to give himself a shield to protect his ADC (leaving him vulnerable for a while) or save it to get away himself.
This change will give more synergy with Tahm's kit and create more decision making for all players involved.