Another reprinted support card for Pendulum Monsters is confirmed to be in Structure Deck: Pendulum Evolution.

SD31-JP038 Extra Buck

Continuous Trap Card

Each time a card(s) is added to your Extra Deck, place 1 Spell Counter on this card (max. 3). You can send this card with 3 Spell Counters to the Graveyard; draw 2 cards.

This card was first printed in Clash of Rebellions.

Source