Aeon's End
When do players discard gems to Pulverizing Ray and what counts toward the 6?
When the Power's last counter comes off and it resolves on the nemesis turn, Gravehold faces 18 damage, and the players may collectively discard up to 6 gems, each preventing 3 of it. The 6 counts gem cards, not aether value. Tainted Jade counts as a gem.