Rusalka is vulnerable against Slash-based attacks, so equipping the Vol Confodere glyph or similar is recommended, which will also allow the player to deal more damage per second while also giving them a better chance to dodge her attacks in time. Arcus will deal less damage, although it is a safer strategy.
Even though she is also weak to Thunder attacks, it may be better not to use them unless the player plans on using the Weapon+Thunder Glyph Union attack. Vol Fulgur does not deal as much damage per strike as edged weapons, although it can strike her from atop the Moais.
Another strategy consist in casting Arma Chiroptera from the top of a Moai and continuously fire bats at her, only getting down when she calls a maelstrom or changes her hair to a water pump.
Her attacks consist of her using her hair as a whip to attack at close range, turning her hair into a water pump to spray jets of water, firing a wave that erupts into a geyser when it reaches or gets below the player, or dropping Moai stalactites from above.
At some point during the battle, she will yell out: "Maelstrom!" or "Waves be wild!", forewarning of her summoning a gigantic maelstrom attack which will cover the whole screen. The player must then take cover underneath one of the Moais in order to dodge the attack, as the damage of the pounding waves may be enough to kill them in one hit (even to a lv. 255 Shanoa). It is more probable that Rusalka uses this attack when there is at least one Moai left on the screen; if there are none, she will usually call forth another set so the player has a place to hide while she is preparing to use this attack. In some occasions, however, she may decide to ignore this rule and summon the maelstrom anyway, especially if the player keeps destroying the Moais over and over, so the player is advised to be careful on where and when to attack, and always keep at least one Moai intact in case of an emergency.
|Item Data: Rusalka|
|Image||Name - Game|
|Type / Users||Attributes / Consume||Statistics / Sell||Found||Notes|
|Medal awarded for defeating the water demon, Rusalka.|| Item (Boss Medal)|
|Sell: (cannot be sold)|| Drop: Rusalka|
Conditions: Defeat Rusalka without taking damage.