Concentration

When active, aura increases the damage and decreases the chance that the attack will be interrupted for you and your party.

Concentration is a level 18 Paladin Offensive Aura that requires Blessed Aim and opens Fanaticism. While it is the active aura, you and every ally in its radius get a damage bonus and a 20% chance that an attack is not interrupted. Two numbers decide it: the bonus, +60% at level 1 and +345% at level 20, and the half of that bonus that Blessed Hammer gets.

The numbers

The damage bonus is Param3 60 as the baseline and Param4 +15 a level: +345% at level 20 and +495% at level 30. The radius is Param1 16 plus Param2 2 a level, times two thirds for yards: 10 2/3 yards at level 1, 36 at level 20. The uninterruptible chance is Param5 20% at every level; it does not grow. An aura costs no mana, and the row's InTown flag is set. The two growing lines read lvl, so +skills from gear and an Aura When Equipped item count.

How it works

Concentration is an aura with the row's concentration state on the caster and on every ally in range, refreshed every 2 seconds (perdelay 50), with no target and no hit check. It carries two stats:

• damagepercent (aurastat1), the same +% damage that off-weapon Enhanced Damage and Strength give. It is added to that pool and the pool is applied once to the weapon's damage (Dealing Physical Damage).
• skill_concentration (aurastat2), set to Param5 20: a 20% chance that an attack in progress is not interrupted by being hit. See Hit Recovery and Stun for what interrupts an attack.

Blessed Hammer is the exception to the damage pool: the hammer's own row has Param1 4, "Damage % from Concentration (in 8ths)", so the hammer gets half of Concentration's bonus. The Basin's page prints that column as floor((45 + 15 × level) ÷ 2) for the older game's values; with the current table it is half of the line above, +172% at level 20 and rounded down to the point, as the Basin's Blessed Hammer page says. Might and Fanaticism give the hammer nothing.

The uninterruptible chance is 20% at level 1 and 20% at level 30: no level, hard point or +skill raises it.

Synergies and +skills

No synergies: Concentration has no dsc3 lines and no …SymPerCalc column, and it feeds no other skill's synergy line. Its damage and radius read lvl, so a +skill from gear raises the aura exactly as a hard point does; the 20% chance never changes. Its link to Blessed Hammer is the hammer's Param1, not a synergy: it reads the aura's level, hard or from gear.

Against players

Concentration is a party aura and never touches a player; it raises its wearers' hits, and a player's hit on another player is cut to 17% of its value (difficultylevels.txt PlayerDamagePercentVSPlayer) before anything else, see Player versus Player. The Basin's page adds nothing else about players.

Build notes

• Level 20 reads +345% damage and a 20% uninterruptible chance in a 36-yard radius, for no mana; a +skill from gear adds 15%.
• For Blessed Hammer it is +172% at level 20, half rate, and the only damage aura that applies; a hard point and a +skill are worth the same here.
• For a weapon attack the bonus is additive with Strength and off-weapon Enhanced Damage, so its share of the total shrinks as those grow; the 20% chance is the same at any level.