You deal 2% extra damage and take 1% more damage with Double-Edged Sword
. This is huge, especially on a champion like Katarina where 1 reset can determine the outcome of an entire team fight. This point is always worth taking on melee champions because of how much value it provides.
Take 2 points in Sorcery
to move up to the next tier of offensive masteries. 2.5% CDR isn't too impactful, but there's really nothing better to take.
really helps with last hitting so take a point in it.
Take 3 points in Mental Force
for a free 16 ability power at level 18.
gives you 3 health every time you last hit a minion. It works very nicely with Butcher
so take a point in this as well.
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. This is probably my favorite mastery in the game.
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 and 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.