The VJump promo reveals are always 11am EST on the 6th of each month; so it should be Monday Night a couple weeks from now. We’ll probably get the last Light Duelist Pack archetype the night before (Sunday).
This is jokingly the possible effect If you take damage, you can discard this card or if this card is destroyed: destroy the card that destroy this card if any then you can summon any number of kuriboh token (Dark Fiend, ATK/DEF 0/0 with this effect: If this card is destroyed by battle, you can summon a kuriboh token. Destroy any card that destroy this card
Unfortunately this is underwhelming. All these promos aren't that great. My guess it'll probably burn the opponent for each kuriboh on the field or GY.