Absence, Voice of the Void

25: At the start of each opponent's turn, if the Portal is open, you may banish the top card of your deck. If you do, you may draw a card.

Trigger - Portal: Target [Absence] card you control gets +1/+0 until end of turn.

Trigger - Challenge: You may activate the Portal.

20: Action: Play a card with Void from your Banish Zone as though it were in your hand. If you do, lose health equal to its specific resource cost.