Whistle

Acquired: BLU (actions)
Level: 1
Type: Spell
Index: 64 (Page 4)
Rank: ★★★
MP Cost: 200
Casting: 1s

Recast: 2.5s (GCD)
Range: 0y
Radius: 0y

Targeting: Self
Patch: 5.15

“

Increases the potency of the next physical damage spell cast by 80%.
Duration: 30s
Effect cannot be stacked with Boost.

— In-game description

Whistle is an action unlocked at level 1. It is available for Blue Mage.

Related actions

Bristle

Flavor Text

This technique is in fact one of psychological suggestion, albeit suggestion performed on the self. When the proper pitch is attained, the body will respond by producing adrenaline, which can be used to advantage in combat─or, if one happens to be a dhalmel, in attracting a mate.

Acquisition

Open World

Enemy	Level	Location
Bull Dhalmel	51-52	The Sea of Clouds (17.2,33.1)
Dhalmel	56	The Sea of Clouds (17.3,32.2)
Jhammel	68	The Peaks (24.8,28.5)
Nenaunir	68	The Peaks (23.1,28.7)

Tips

Acquisition Tips

Recommended to learn from the Dhalmel or Jhammel overworld enemies.

Other Tips

Specifically cannot be stacked after you have used Bristle.
Whistle's buff is called "Harmonized".
Often chosen for the Tingle + Whistle + Triple Trident combo for high burst damage. (They combine multiplicatively, which means 1350 potency.)
Only affects the potency of physical damage spells (i.e. actions on the global cooldown), not abilities or magical actions. For example Final Sting is affected, but not J Kick.

History

Patch 5.15 (2019-12-09): Added.