[Item concept] Eternal Regalia - increased effect duration

+ + + 750g = 2600g

+300 Health +300 Mana +30 Armor +30 Magic Resist

UNIQUE Passive - Eternity: 15% of damage taken from champions is gained as mana. Spending mana restores 20% of mana spent as health, up to 15 per cast (toggle spells heal for up to 15 per second).

UNIQUE Passive - Patience: All effects from skills last 15% longer.

This would also increase the damage of effects like Rumble's Q and Brand's passive that specify a certain damage over the effect rather than listing the damage per tick.