Imbued heart

“This heart holds a magical power within.”

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Imbued heart is a Magic-boosting item that drops from superior slayer monsters, rare encounters unlocked by buying the Bigger and Badder unlock for 50 Slayer reward points from any Slayer master. Its Invigorate option raises Magic level by 1 + 10% of the player's level, usable once every seven minutes. It is tradeable on the Grand Exchange and can later be upgraded into a saturated heart with ancient essence.

How to get the imbued heart

The imbued heart drops from superior slayer monsters — rare, buffed versions of normal Slayer targets that only appear after buying the Bigger and Badder unlock for 50 Slayer reward points from any Slayer master. The chance of a superior monster dropping the heart depends on that monster's own Slayer level requirement, by this formula: 1 / (8 × (200 − ⌊(Slayer req + 55)² / 125⌋)).

The heart is tracked in the collection log. Once obtained it's tradeable on the Grand Exchange, with a buy limit of 8 every 4 hours.

How the imbued heart's Magic boost works

Using the Invigorate option raises the player's Magic level by 1 + 10% of their current level, rounded down. For example, a 90-99 Magic account gets a +10 boost. It can be activated an unlimited number of times, but only once every seven minutes per player, no matter how many hearts are owned; using it while on cooldown shows a chatbox message telling you how many minutes remain.

The cooldown resets whenever the player dies, even inside safe minigames such as Castle Wars. The fastest way to reset it early is walking back and forth through the Clan Wars free-for-all (white) portal, or drinking from the Pool of Refreshment in Ferox Enclave — though the pool also strips any currently boosted levels. The heart cannot be brought into legacy Emir's Arena duels that have the "no potions" option turned on.

Upgrading the imbued heart into a saturated heart

Feeding an imbued heart 150,000 ancient essence upgrades it into a saturated heart. The upgrade adds +3 to the Magic boost, stops the boost from gradually draining the way divine potions do, and cuts the reactivation cooldown from seven minutes down to five. The conversion is non-reversible.

Imbued heart FAQ

What does the imbued heart do?
Using its Invigorate option raises the player's Magic level by 1 + 10% of their current level, rounded down — for example, +10 at level 90-99 Magic.
How do you get an imbued heart?
It drops from superior slayer monsters, rare Slayer encounters that only appear after buying the Bigger and Badder unlock for 50 Slayer reward points from any Slayer master.
How often can you use the imbued heart?
Once every seven minutes per player, no matter how many hearts you're carrying; it can be reused an unlimited number of times overall.
Does the imbued heart's cooldown reset when you die?
Yes — dying resets the cooldown, even inside safe minigames such as Castle Wars.
What's the fastest way to reset the imbued heart's cooldown?
Walk back and forth through the Clan Wars free-for-all (white) portal, or drink from the Pool of Refreshment in Ferox Enclave — though the pool also removes any currently boosted levels.
Can you use the imbued heart in the Duel Arena?
No — it can't be brought into legacy duels within Emir's Arena when the "no potions" option is enabled.
Can the imbued heart be upgraded?
Yes. Adding 150,000 ancient essence upgrades it into a saturated heart, which gives a +3 higher boost, doesn't gradually drain, and has a five-minute cooldown instead of seven. The upgrade can't be reversed.
How much is the imbued heart worth?

It trades on the Grand Exchange.

Update history

11 January 2023The sound effect that plays when using the "Invigorate" option was changed, part of the Secrets of the North & More! update.
15 August 2019Major reset events that restore stat-boosts, such as death, will now reset the imbued heart's timer if it was used, part of the Small Game Updates and Betas update.
15 March 2018The item's value was increased from 14,000 to 500,000, part of the QoL, Deadman and the Falador Party Room update.

Source: OSRS Wiki — Imbued heart (Changes).