Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
This is a lot like every other Gangplank build that you will see and this one is based around a lot of crit, Being able to run fast, And put out a lot of damage and being able to get away from heavy damage.
Ignite: amazing for a quick burst and a damage over time effect for people trying to run away
Ghost: So you can move around the map quickly and to get away from bad situations
1. brawler's gloves: For the extra crit rating and for the build for avarice blade
2. 2 health potions: so you can stay on the feild longer
3. 2 Avarice blade: So you earn more gold and you get more crit bonus
4. Ninja tabi: a bit of armor move speed and dodge
5. Infinity edge: This is a huge thing for this build. With all the crit you will get this will send your dps over the top
6. 2 Phantom dancer's: attack speed,crit,and move speed. What more could you ask for in this build.
I always start with Parrrley for good harassment and easy gold
Then i go down to raise morale to deny enemy's of xp and gold and to boost my own attack and move speed.
Then i move on to remove scurvy to be able to get out of tight situations.
For the start of the game i always run to the bushes with my lane mate and wait for the other team hoping to get a quick first blood for that extra gold and xp. Then i will harass the other remaining enemy and farm my gold and xp while he suffers.
Quote from http://www.mobafire.com/league-of-legends/build/gangplank-deny-4242
One thing to keep in mind is use parley only when necessary to scare your enemy from your tower you never want to be OOM
When you hit lvl6 and get your ulti be sure to keep your eyes open for low health champions for the extra kill and to boost moral of your team.
Always be careful when near towers. Be sure you can get away from the tower if your gonna go in for the kill never take the chance to give the enemy your xp and gold.
If you see a huge pile up of creeps don't be afraid to use your ulti to clear them out and give your creeps a chance to push out doing more damage to the towers that the enemy has forgotten about.
By late game you should be a ganking machine being able to carry out quick and easy kills making it easier for your team to be able to push the enemy back for the win. When your in a team fight always go for the least armored to get them out of the way quickly.