His Passive allows him to come out on top of short trades which is quite advantageous for him. Due to how well Gangplank scales, his Passive damage is really helpful in keeping his enemies away from him.
His E can be set from weird angles that can catch the enemy off-guard and cause a lot of damage. This is really good if Gangplank has access to the lane brushes in order to conceal his E barrels.
With his Ultimate R, he can impact any part of the map immediately and can act as an enabling force for his laners/Jungler to all-in their counterpart and get a lead. Besides, the longer the game goes on, the greater is the scaling for Gangplank due to his Q gold mechanic.
Destroying his E barrels before he can detonate it can take a lot of damage off his kit. It forms a major part of his early game damage and without it, he will just be stuck farming and occasionally helping his team with his Ultimate R.
His W is an important spell in his kit and he is very weak once that ability is down during the early game. He becomes really prone to ganks when this ability is down and he can’t really escape without using summoner spells.
Fighting in open spaces reduces the effectiveness of Gangplank as he won’t be able to use his E barrels to the fullest potential. The same thing applies to his Ultimate R. He can’t initiate an all-in without his Ultimate R during the early game as well.
0 - 15 min
Gangplanks early game is rather weak. Focus on farming and earning as much gold as possible to get your key items quickly.
Watch the map at all times post level 6. Your Ultimate R is very impactful and can help your allies to win fights and skirmishes.
Avoid fighting in the early game if possible. Gangplank needs time to come online and in some matchups you’ll need to just focus on farming and surviving.
15 - 25 min
When no team fights are occurring, split push and draw the enemies attention to you while your team sieges or makes plays on the other side of the map.
Make sure you continue to farm during the mid-game so you can upgrade your Ultimate R and earn more gold.
Keep a constant eye on the map during the mid-game so you can assist your allies with your Ultimate R when appropriate.
Try to delay team fights as long as possible while you poke the enemy down with your Barrels E. Getting a good Barrel E off can help you win the fight.
Avoid fighting unless your Ultimate R is up. It is a very important ability and you need to make sure it’s up before committing to a fight.
While Gangplank does have a lot of splitting power, it’s better for you to group with your team in the late game as there are strengths in numbers.
Gangplank's level 6 is a good powerspike for him in this lane, especially if Gankplank has been pushed in the entire time. This will allow him to chase down enemies with ease and kill them if he has already poke them with his Q. It also has a significant impact during team fights.
His initial core item will give him a massive boost in dueling power. He can now go, and 1 v 1 targets with ease and can completely blow enemies up with his barrels.
His early game is weak as he is entirely dependent on items to be dishing out damage. However, he can compensate for it using his Q to poke enemies out with ease and use the lane brushes to conceal his barrels. It will catch enemies off-guard and will allow Gankplank to get the upper hand.
His Ultimate R should have an upgrade now. It will increase his overall effectiveness in a fight, and the reduced cooldown will help Gangplank win fights quickly.
Gangplank will soon be able to put another point in his Ultimate R. Once that is done, his presence around the map will increase massively. It will also help a lot when dealing with neutral objectives.
Depending on the ability he is maxing first, he will either be doing lots of damage with his Q or blowing people up with his W from level nine. This is because that ability will be maxed out at that point.
Gangplank's Ultimate R will be a force to reckon with now as it will have multiple upgrades and will give added benefits to him. This will increase his team fighting strength by a lot.
Now he will have three points in his Ultimate R. With the reduced cooldown and the damage, Gangplank will be able to take over the game effortlessly.
This is the point of the game where Gangplank becomes really scary. He has a truckload of items, his barrels can legitimately one-shot someone, and he can effortlessly chase people down with his Ultimate R. The enemies will have no other option than to walk the plank at this stage.