User blog comment:OzzyrD/AP Tristana Vs. LeBlanc/@comment-203.215.118.255-20130126144555

AP tristana is very fragile way of playing tris because

1. Her kit revolves around kiting your opponent and making sure your opponent doesn't get to close. Building her AP means you'll rely on rocket jump to deal damage as well as to initiate and/or disengage with it's reset. Unless you'll use rocket jump to finish off opponent which is unlikely, you'll rely on her E and/or her ulti as damage. Both her W and ulti are disengage skills which helps you get out of sticky situations. If you'll use them as engage skills then it leaves you with flash/ghost/barrier/heal to help you survive fights unless your rocket jump resets. This means going AP is going against her kit which is a bit derivative on how she is really meant to be played.

2. Building AP means not needing range or attackspeed which in turn means that your not using her passive and her q to its fullest potential.

3. Building her AP means spamming most of your skills and tristana doesn't have much manapool to compensate this need which means you'll be needing mana sustain items in your build.

4. Building AP also means you'll not be building lifesteal items which means you'll have no life sustain in teamfights or lane unless you build spellvamp or health regen.