poppy can be but in to three diffrent categories ad,ap,hybrid. eachone is good for poppy but you have to know when to us it. when your team have lots of ad go ap. when your team has lots of ap go ad. but if your team is a balance of them both you would like to go hyprid.

all of the three have diffrent runes which cost lots of money. and dont forget the new pape you will have to buy. but over time you may get to all of them like i have. and which will make poppy better for killing

the ap and hybrid are pritty much the same becuse they help them kill and chase. with the ad one is made for close up compat it is good for long fights that you may have.

you may have notice in each build poppy has some sort of life gain with it is lifesteal or vampsteal. i have it so you can stay in the fight longer to make the kill it is good when you use your ult when your are low to gain more hp. and some way to slow your enemy down for the easy kill/chase.

each one is a diffrent game play for starters the hybird one is when you are pushed back by your tower and you can flash beind them to use Heroic Charge to knock them to your tower for the stun and kill. with all three of them you would want to play more defensivly it till you gat your ult or life steal. with ult make shoure that you use it corectly if use it too soon you will lose it in middle of a tower dive too late you may be to low on helth so they can kill you.

when playing poppy your ult does more damage to the taget you chose with this in mind go for the carry that they have in a team fight. but if you are too low to kill the carry with ult just use it on a tank and still focus on the carry for a kill. if they go thought the jungle that is poppy best feild for her stun ever time.

i personaly like to start a team fight so that i can ult them and make them wast there time with me and i still can get a kill. also good way to get a easy kill go behind them had horic charge them in to teamates for anther easy kill.