Has Effect can be a generic spell effect description like:
Root, Stun, Mesmerize, Cure, Heal, HoT, Nuke, DoT, Proc, Snare, Pacify, Timer 3, etc...
 Beneficial Duration 35 L85
Resist: Beneficial, Blockable: Yes
Duration: 3.3h (1950 ticks), Extendable: Yes, Dispelable: Yes
1: Increase Spell Duration by 35%
2: Limit Max Level: 85 (lose 5% per level)
3: Limit Type: Beneficial
4: Limit Effect: Exclude Donals Heal
5: Limit Effect: Exclude Invulnerability
6: Limit Min Duration: 24s
7: Limit Effect: Exclude Assist Radius
8: Limit Type: Exclude Combat Skills
Increases the duration of beneficial spells by #1%. This bonus will decay on spells over level #2.
Spells are shown as if they were cast by a level 105 player (their strength may differ at other levels).
Source code for this spell parser is available on github. The standalone parser can be downloaded here.