Ill-Timed Explosion

Draw two cards. Then you may discard two cards. When you do, Ill-Timed Explosion deals X damage to each creature, where X is the greatest mana value among cards discarded this way.

Flavor Text: Only too late did the Agency custodians realize the device had not been inactive—it was just waiting for the right trigger.

Card Details:
Set: Murders at Karlov Manor
Collector Number: 207
Artist: Aaron J. Riley