In his day, Elder Alsen was known by a peculiar name: The Pot Man.
His ability consisted of a two-square-meter pot that he could materialize and use for many things. Along with this ability came the ability to create different types of poisons inside that pot. Once he opened it, anyone he considered an "enemy" would find themselves plunged into nightmares or perhaps poisoned with some deadly toxin.
No one ever knew what might emerge from this pot, so everyone respected him. Even Gray Allen didn't want to fight him because, even though his ability was of the support or mass attack type, no one wanted to face the uncertainty of not knowing what that pot would contain.
The problem is that the casting time between each one is costly. Since it is a skill that does not act immediately but requires a medium to do so, it is usually only used in attrition battles when other people are protecting him.
And today was his day to shine.
