Abilities you should NOT underestimate
Not calling for nerfs. Not at all. Just tired of my allies going like "wat dat damage"
Ulti
The more flat HP you have, the more garen will suprise you. Be careful against it.
E
FLANKS 4 DAYS
passive
Slow roasted base damage
Q
Dont gank him without waveclear. He will waddle, and you will die
R
That thing lasts a long time. Dont get caught off guard by the last tick killing you.
Q
It gets a lot of flack for being hard to land. Dont get cocky with your jukes. A bomb with a deathcap behind it WILL hurt if you get hit by it.
Q
You know it. I know it. Dont forget. Be extra vigilant with your jukes if you want to play league of legends today.
Passive
No one expects the AD Malzahar. Just... hit tab before you walk into lane with that MR item.
She has a 2 second stun. DON'T DIVE.
Bar red? Don't dive.
Fed? Don't gank without your mid-laner.
Darnkess? That doesn't mean you have to run away from your teammates thinking you'll get out of range.
Just killed him? RUN!
Don't dive.
OK, I got it, just a little more damage. Just a little more.
W
reduces heals, don't heal your ally through it
Passive
Armor AND MR, lots of it, wait for him to get out of combat for a second before you do anything to him.
W passive
Does % max life damage for 2 hits (1 from her, 1 from support)
W passive
Bonus AS AND MS, don't bother chasing if she hits a mark
W
It resets, if she gets a kill just get away from her until she jumps
Passive
Grants bonus move speed when chasing, don't bother running unless you can jump a wall
(E) with 5 bars of Ferocity.
W, Oh no, he healed for 400 health and just killed me when I thought he coulda died. mwahaha
passive
You can slow roast an ulting 
with this thing
W
If you are a DoT mage you might as well not even bother attacking him. He can heal off of inhibitor turrets while it's up.