Brutal is a flat 25% increase to outgoing damage from a character. On the other hand, abyssal takes the damage you do and it converts a percentage of that to void damage. So if your bow has abyssal and you shoot an arrow at your target, when you see “2400 + 800”, that 800 number is the void damage that was converted and dealt.
Phalanx is an affix that casts a large protective shield around the character which will block incoming player projectiles. This shield pulses on and off every 5 seconds. I’ve gone ahead and updated the above table to include Phalanx. See you in Aeternum!