Senna is less likely to spawn souls from minions she kills herself, but will always spawn souls from Large minions, Monsters, and Champions. Senna’s crit damage is lowered by 35% as a trade-off for all of the free stats granted from gathering mist.

Piercing Darkness’ range will always match Senna’s, meaning that when you gain range from your passive, Piercing Darkness’ range will also increase. It can target almost anything (apart from inhibitors, walls, and brush) which allows for some unexpected angles and sneaky kills. Note that the heal from Piercing Darkness will always hit you. Piercing Darkness also procs on-hit effects making items such as Black Cleaver easier to stack.

Last Embrace’s range is deceptively long, like Morgana’s Dark Binding. Your opponents may underestimate Last Embrace’s range and get caught off guard, getting rooted. If Last Embrace hits and kills a low health target, the area around it is instantly rooted. You can use this to your advantage to land an unexpected instant-root.

b]Curse of the Black Mist grants you and your allies camouflage — which is visible to Control Wards, Turrets, and champion vision if someone gets close enough.[/b]

It’s quite difficult to use reactively due to its cast time. If the enemy is already pouncing on top of you before you start backing away, you’re as good as dead without flash available. Curse of the Black Mist is a lot more effective when used proactively, such as during a fight, utilizing the camouflage to weave in and out of vision, or to set up a gank by hiding your jungler and surprising the enemy.

Dawning Shadow requires you to have map awareness in order to utilize its full potential. Look out for opportunities to help your teammates all across the map whenever they need it. Is your top laner getting dove by the enemy jungler? Aim Dawning Shadow up there to help.

Keep in mind that your ultimate cannot damage neutral objectives or monsters, meaning you shouldn’t attempt to steal Baron or dragon with it.

Since you always heal yourself with Piercing Darkness, Overheal is great for Senna. Taking Legend:Bloodline is generally better than alacrity on her as, unlike most other marksmen, her attack speed scaling is next to nothing. As for your secondary page, you can choose pretty much anything, but I recommend either Sorcery with Manaflow Band and Gathering Storm, or Inspiration with Magical Footwear and Biscuit Delivery.

This is similar to your classic enchanter support rune page taking Summon Aery for stronger poking early-game and better shielding late-game. Manaflow Band is strong on Senna due to her high mana costs. Revitalize from the Resolve tree is useful for increasing the size of your heals and shields.

Some Senna support players will likely test Press the Attack due to how easy it is to proc with the auto-Q-auto combo. Press the Attack will let you amplify your carry’s auto attack damage, which is obviously a good thing. We have seen other supports such as Leona use this before to great effect due to how easily and reliably she can proc it.