Schedule :
4/18 (Thu) 03:00 ~ 5/2 (Thu) 02:59 UTC
Albedo and 3F Limited Drop Rate Up

Hero : Albedo
In this Drop Rate Up event, meet Albedo, a 5★ Earth elemental Knight who can protect allies while also contributing to attacks.
"Albedo, the overseer of the guardians of the Great Tomb of Nazarick, manages domestic affairs with her pure-white beauty and outstanding abilities. Momonga altered her settings to be extremely loyal and loving toward her lord, Ainz."
Knight exclusive Artifact, 3F
Players can also obtain the Knight-exclusive Artifact, 3F, that deals additional damage to the target after attacking.
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★ Albedo: 1%
4★ Hero : 4.5%
3★ Hero : 41.25%
Artifact :
5★ 3F : 1.05%
5★ Artifact : 0.7%
4★ Artifact : 6.5%
3★ Artifact : 45%
* Players may check more detailed summon probability by going to Summon > Albedo and 3F
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