Seal the Tomb
The Lost Realm#63 (x1)
Encounter_Side_Quest
(6)

Surge.

Forced: At the end of the refresh phase, discard the top 3 cards of the encounter deck. Return the topmost Undead enemy in the encounter discard pile to the staging area.

The undead keep rising from the grave. For each one that you strike down, another takes its place. You must do something to stem the tide...