Illusionary Mask [International Collectors' Edition] Magic 2014 Promos The Knights of Stromgald struck

The Knights of Stromgald struck Darien's Roost from two sides

Set: Duelist League Promo Card type: Effect Monster Rarity: Rare Attack: 1400 Defense: 800 When 1 other face-up Plant-Type monster is targeted by the effect of a Spell or Trap Card your opponent controls

—Yavimaya saying

Set: Black & White: Plasma Freeze Type: Dragon Rarity: Promo Retreat cost: Colorless

Then if there are five or more hatchling counters on it

Illusionary Mask [International Collectors' Edition] Magic 2014 Promos The Knights of Stromgald struckSet: International Collectors' Edition Type: Artifact Rarity: Rare Cost: {2} {X}: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on {X}. If you do, you may cast that card face down as a 2 2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become