Some idea about Righteous Glory

is a very great item for your team. But it's only give you HP & MP, that's all.

Why not change builds out of instead of ? That will let more suppot to chouse , and can got some armor.

(2800)=(1100)+ (1200)+500 250HP 300MP 50Armor 125% Base Health Regeneration

Passive: Point Runner: Builds up to +20% Movement Speed over 2 seconds while near turrets or destroyed turrets, the movement speed build up decays upon leaving the area. UNIQUE Passive: Eternity: 15% of damage taken from champions is gained as Mana. Spending Mana restores 25% of Mana spent as Health, up to 25 Health per cast (toggle spells heal for up to 25 per second). UNIQUE Active: Grants +75% Movement Speed to your champion when moving towards enemies or enemy turrets for 4 seconds. After 3 seconds, a shockwave is emitted, slowing nearby enemy champion Movement Speed by 75% for 2 second. This effect may be reactivated early to instantly release the shockwave (90 second cooldown).

Some suppot like Sona, Soraka, Janna are really need Armor.