I do damage as a tank and carr
Not Updated For Current Season
With ganking you actually end up doing more damage than your laner, especially when you have red buff to apply the slow/DoT. This damage comes from landing your E and the runes you should have. Always over predict with your E because it does take a second to fly into a lane. You should get the hang of ganking with E though because it does have a large AoE.
The best combo is E --> W as soon as you knock them up --> Q after they aren't knocked up, so you can slow them. If you have ult, use it instantly after Q (use Q asap after W though if you plan on ulting in your combo)
Clearing as Zac
Clearing as Zac is pretty simple. You don't even need a leash. Anyways, follow the image, as long as you're using my runes and masteries this will work perfectly. After you get red and there's no gank opportunities, just take the scuttlers while trying to keep up with your blobs for regen. You'll be at full health in no time, ready to gank if there's more opportunities.
After this clear, you will be level 3. Your level 3 E is obviously very short. Hit level 4 off of a scuttler or your krugs, and then level up E again to have a better gank opportunity.
With these runes, you actually have a nice cooldown on your ultimate. Yep, you guessed it! You can solo dragon after cinderhulk with your ultimate and spamming your W. It does a **** ton of damage and it's very worth in average elo when doing solo dragons isn't the easiest thing to do while none of the lanes are dead.
Teamfighting is always in your favor when you have Liandry's, (which you should by the teamfighting phase). Just E in from the sidelines (anywhere in the sidelines) and you will one-shot squishies if they're 1-2 levels below you. Squishies should be 1-2 levels below you since you technically have the best clearing in the jungle out of everyone. You have to be very risky and pick up your blobs while ulting so you can spam your W (which does a LOT of damage).