Schedule :
1/11 (Thu) 03:00 ~ 2/1 (Thu) 02:59 UTC
Aria and Scroll of Shadows Drop Rate Up

Hero : Aria
In this Drop Rate Up, meet Aria, an Ice elemental Mage who is capable of granting stealth to all allies except for the caster.
"The leader of the Shadow Elves, a race that has cut all ties with the outside world and has chosen to live in Recluse's Forest. She is hard to read and gives off a cold impression, and is extremely hostile to everyone other than her people."
Mage exclusive Artifact, Scroll of Shadows
Players can also obtain the Mage exclusive Artifact, Scroll of Shadows, which increases damage if the caster attacks when it’s not their turn and inflicts a random debuff on the target.
Guaranteed Summon System
1. Each summon will cause the summon counter to decrease by 1. (Maximum 120 Summons)
2. If a player does not receive the featured Hero after 120 summons, then the following summon is 100% guaranteed to summon that Hero.
3. If the featured Hero is summoned, then the Summon Counter is reset.
Summon Probability
Hero :
5★ Aria : 1%
4★ Hero : 4.5%
3★ Hero : 41.25%
Artifact :
5★ Scroll of Shadows : 1.05%
5★ Artifact :0.7%
4★ Artifact : 6.5%
3★ Artifact : 45%
* Players may check more detailed summon probability by going to Summon > Aria & Scroll of Shadows.
Please Note
– The Drop Rate Up applies only to this Banner during the event period. Players are able to use both the Guaranteed Drop Rate Up Banner as well as regular covenant summons.
– Moonlight Heroes will not appear during Guaranteed Drop Rate Up banners.
– The featured 5★ Hero will have their probability rate increased to 1% when summoning on this banner and no other 5★ Hero can be summoned.
– Please note that for this week, no maintenance will be required, and the update will be applied automatically.
Source : Onstove