Welcome to the Tankplant Support guide! Here, I will be teaching you everything you need to know about play in the game, because Runes, Masteries, and Items will only get you so far.

I chose the Scaling Health seals over the Armor Seals because Gangplank has the highest base health stat in the game, so he doesn't have as great scaling. With those Seals it will help him scale as well as everyone else :). The Armor Marks and the Armor Quints are to supplement for not having Armor Seals. The Magic Res. Per Level work well to help him scale and just stay alive longer in later game team fights.

Exhaust and Flash are the standard support summoner spells and will serve well for this strategy as well.