Basic purpose of this guide is to give to the best of my knowledge a background on 2 different builds that I find effective on Poppy in different situations and aid others in learning one of the most efficient anti-carries in the game.
Summoner Skills: Flash/Ghost (While ignite + poppy ult is nice AP Poppy is reliant on positioning for maximum burst but ignite/flash ignite/ghost can suffice)
Quints: HP (Movespeed, AP are fine)
Yellow: Manaregen/lvl (dodge, hp/lvl, ap/lvl are fine)
Skill Order: E,Q,W,E,E,R, Q (Note: Don't lvl Q past 2 until you have to since its scaling is awful and the bonus damage cap will not be used)
Sorc/Merc (CDR boots not that great on hero with majority of damage reliant on initial burst)
-Pick Poppy when you have a strong lane partner, don't just blindly pick her when you know you are laning with someone who is weak as well. Best lane partners for Poppy (and lots of heroes -_-) would be Janna, Taric, Alistar.
-Learn to be patient in lane with Poppy, you don't need alot of farm just take what you can get and watch map for opportunities.
-Don't go too overboard on chasing if you can't guarantee the kill you want to stay in fight if possible
-Let your team initiate fights dont just blow summoners and run in first to ult their carry just to have them flash/ghost away. You want to wait for opportunities to use your team's cc if possible.
-Their carry will hate you with a passion enjoy it
Summoner Skills: Flash/Ghost
Blue: CDR/lvl (goal of build is to stack cdr and be super annoying tank magic resist is fine as well)
Skill Order: Same as AP
Doran's Shield or HP Pendant
Merc Treads (CDR boots or boots3 can be fine if they lack cc for some reason)
Sheen - Tri Force
(if game still going on..)
Randuins Omen/Veil/situational tank item etc.
-I use this build over AP when the other team has alot of support (Shen, Janna, Zilean are a AP Poppy's worst nightmare) and I want to focus on having strong sustained damage with cdr and tankiness. You can play much more ballsy with this build.
-Your MS will be insane, chasing is easy mode.
-Don't ult right away make them put some focus on you first then bust out your ult when you have a position to E their carry into wall or ult a tank and leave fight if it's a lost cause.
My first guide on here let me know what else you'd like to see!