The Clowns grin of death

You touch a creature, which must succeed on a Wisdom saving throw or become cursed for the duration. Until the curse ends, the target suffers one of the following effects of your choice:

• Choose one ability. The target has Disadvantage on ability checks, attack rolls, and saving throws made with that ability.
• The target has to take an extra 5 necrotic damage when attacked.
• In combat, the target must succeed on a Wisdom saving throw at the start of each of its turns or be forced to take the Dodge action on that turn.
• If you deal damage to the target with an attack roll or a spell, the target takes an extra 400 d20 Necrotic damage. ONLY USEABLE ONCE PER CAMPAIGN. NOT OVERPOWERED JUST BALENCED. AGAIN, USEABLE ONCE, ONCE PER CAMPAIGN!!!!!!!!!! USES ALL THE STRANGTH FROM PAST ITTERATIONS OF THE CHARACTERS.