+20% to all Elemental Resistances While there are at least five nearby Allies, you and nearby Allies have Onslaught While there is at least one nearby Ally, you and nearby Allies deal 10% more Damage 
You deal more Damage
Radiant Crusade is a notable Ascendancy passive skill for the Guardian that grants elemental resistance, grant you and nearby allies more damage if you have at least one nearby ally, and Onslaught to you and nearby allies if you have at least five nearby allies.
Has been reworked. It now grants +20% to all Elemental Resistances. While there are at least five nearby allies, you and nearby allies have Onslaught. While there is at least one nearby ally, you and nearby allies deal 10% more damage.
Prayer of Glory has been replaced by a new notable -- Radiant Crusade: You and Allies affected by your Aura Skills deal 20% increased Damage, 10% increased Area of Effect for each Summoned Sentinel of Purity, 10% more Damage while you have at least 1 nearby Ally, Herald of Purity has 40% increased Buff Effect, and Summoned Sentinels of Purity have 50% increased Area of Effect. The passive leading to this notable grants 14% increased Armour, 6% increased Maximum Energy Shield, and Minions deal 10% increased Damage.