see the perfect opportunity for resets. In exchange, you get a 2% damage increase. This is huge, especially on a champion like Katarina where 1 reset can determine the outcome of an entire team fight.
Take 3 points in Sorcery
to move up to the next tier of offensive masteries. 3.75% CDR isn't too impactful, but there's really nothing better to take.
Giving your allies 1% extra damage is pretty significant in team fights and can determine whether or not you'll get a reset.
Take 3 points in Mental Force
for a free 16 ability power at level 18.
Put a point in Arcane Mastery
for 6 flat ability power.
is a very important mastery on Katarina. As an assassin, you prey upon the weak, so putting 3 points in this ensures a 5% damage increase to enemies under 50% health.
Put 3 points into Archmage
for an extra 5% ability power. This increase will be very subtle until mid/late game but it is extremely helpful.
Put a point in Dangerous Game
for those clutch moments where you would've lived if you had it.
Put 3 points in Devastating Strikes
for an additional 6% armor penetration and magic penetration.
helps mainly with last hitting. You won't really notice this doing a lot of damage until late game, but I always put a point into it.
1 mastery point for 3% extra damage? I think it's definitely worth taking a point in Havoc
2 points in Block
means you'll be taking 2 less damage from auto attacks which may not seem like a lot but it's pretty significant in pre-6 laning.
Take 2 points in Recovery
for an extra 2 health regen per 5. Like Block
, it won't seem like a lot but it's pretty important.
blocks 2 damage from champions. This means you'll be taking 2 less damage from auto attacks as well as spells. Take a point in this.
Put 3 points into this for 36 free health.
16 extra health at level 1, 57 health at level 18. Not the greatest mastery point but there's not really anything else worth while.