Channelling Skills have 6% increased Attack Speed
10% chance to gain an Endurance Charge when Hit while Channelling
10% chance to gain a Frenzy Charge when Hit while Channelling 
Charging Offensive is a notable passive skill that grants increased attack damage and attack speed with channelling skills. It also grants a chance to gain endurance charges or frenzy charges when hit while channeling.
The unique amulet Eye of InnocenceEye of Innocence
Citrine AmuletRequires Level 68+(16-24) to Strength and Dexterity10% chance to Ignite
(50-70)% increased Damage while Ignited
Take 100 Fire Damage when you Ignite an Enemy
2% of Fire Damage Leeched as Life while Ignited"...and so He said: 'Let only the good meet my gaze'
and no eye met His. So He called down the cleansing flames
and let black smoke sweep the Sinners away."
- Book of Innocence can trigger the charge generation without needing to rely on enemies hitting you.