Midnight Oil [Kaladesh Prerelease Promos] 276 If your opponent activates a

If your opponent activates a card or effect (except during the Damage Step)

Set: Dark Revelation Volume 1 Card type: Effect Monster Rarity: Common Attack: 200 Defense: 300 Once per turn

You can only use each of the following effects of "Traptrix Cularia" once per turn

Set: Magic Ruler Card type: Effect Monster Rarity: Rare Attack: 300 Defense: 350 When this card is face-up on the Field and control shifts to your opponent

Midnight Oil [Kaladesh Prerelease Promos] 276 If your opponent activates aSet: Kaladesh Prerelease Promos Type: Enchantment Rarity: Rare Cost: {2}{B}{B} Midnight Oil enters the battlefield with seven hour counters on it. At the beginning of your draw step, draw an additional card and remove two hour counters from Midnight Oil. Your maximum hand size is equal to the number of hour counters on Midnight Oil. Whenever you discard a card, you lose 1 life.