Slaughter R3 - Increases critical strike chance of Jagged Slice, Bloodbath, Agonizing Strike, Fatal Blow, Vicious Spin and Whirlwind by 15% R3 is a must for PvE
Butcher R3 - Increases the damage deal by Bloodbath, Crushing Blow, Bash, Jagged Slice and Arcing Blow by 15% R3 is a must to maximize AoE damage from Crushing Blow.
Daredevil R2 - taken at R2 just to be able to take Slaughter rubies.
Team Play R3 - Increases damage dealt by 2% for each group member in a 40 yards radius (5 group members maximum of 10% damage increase) R3 is a must to maximize damage output.
Ruthlessness R1 - Increases Anger by 4, taken just so I can take Bushido
Bushido R3 - Restores 3 Energy points every 2 seconds R3 I think is a must for long boss fights.
Controlled Rage R3 - A definite MUST. Reduces the armor penalty of Aura of Ferocity to 0% at R3 without it the warrior would suffer a 30% armor reduction while Aura of Ferocity is active.
lethal Blows R3 - Increases warriors proficiency by 9 points (9 points is 9% increase to damage and healing)
Good as New - Each kill decreases the cool down duration of Charge by 10 seconds. No point skipping this ruby, would have
Pebble wall R2 - Stony Resilience restores in battle at 10% of your HP, Stony Resilience will only restore after a period of not taking any damage. R2 is enough for this in PvE, it's not often you take damage unless you take agro from tanks on AoE pulls
Desire for Life R1 - Reduces the cool down of Die Hard by 20%. I think R1 is enough for this in PvE
Bushido R3 - Restores 3 Energy points every 2 seconds R3 I think is a must for long boss fights.
Rugged Fighter R3 - Increases a warriors Stamina by 15%.
Lucky R3 - Increases critical strike chance of Devastating Blow, Flawless Strike, Double Blow, Arcing Blow and rapid Slash by 15%. These rubies are really important to take in PvE as a critical strike inflicts double the damage of a normal strike.
Muscle Head R3 - Increases critical strike chance of Lunge, Charge, Forceful Kick, Shield Slam, Crushing Blow, Knee Shot, Hack, headbutt and Instant Shot by 15%. Like the Lucky rubies, these are very important rubies and shouldn't be missed out.
Rampaging Menace R3 - Increases a warriors Vigor by 9%.
Combat Training R3 - Damage dealt by Lunge, Charge, Shield Slam, Hack, Headbutt and Instant Shot increased by 15%. As Lunge is a main damage skill these rubies are a must.
Bull's Eye R3 - Increases damage dealt by Devastating Blow, Flawless Strike, double Blow and Rapid Slash by 15%. Another ruby set that increases damage of a main attack skill (Flawless strike), Double Blow is also used in this build which gets a damage boost too.
Lance Warrior R2 - Damage inflicted by 2-Handed weapons increased by 4% and also increases melee range by 3 yards. Some bosses in Astral Isles target random people and then require kiting, this not only increases 2-handed damage but also allows you to kite and damage at the same time without being hit because of increased speed from Swiftness.
Warden R1 - Taken only because it's on the quickest route to take the Crushing Blow Rubies. Hack and Knee shot reduce enemy's speed by 58% and increase damage by 10%.
Bushido R3 - Restores 3 Energy points every 2 seconds R3 I think is a must for long boss fights.
Instant Shot R1 - Grants the warrior an instant Cast of Aimed shot. Only taken because it's on the quickest route to Crushing Blow.
Crushing Blow R2 - The Warrior jumps to a specified location inflicting XXX to XXX damage to ALL enemies in a 10 yard radius and throws them into the air for 1.5 seconds. This AoE skill does huge damage for PvE R2 is a must I think.
Feint R2 - Lunge costs 45% less energy if a 2-Handed weapon is equipped. Lunge is a main damage skill and has its own cool down duration so is constantly being spammed, 45% less energy cost is very much needed.
Swiftness R2 - Each attack that inflicts damage to a single target increases a warriors movement speed by 10% for 7 seconds, this effect stacks up to 3 times. This is a very useful skill to have as you may need to kite some bosses, Lance Warrior rubies allow you to damage from out of a bosses range while you kite.
Natural Born Killer R3 - Increases damage inflicted by Agonizing Strike, Fatal Blow, Vicious Spin and Whirlwind by 15%. Fatal Blow is a main damage skill and Whirlwind is the main AoE damage skill. These rubies are very important to maximize damage.