Form of the Dinosaur [Rivals of Ixalan] 2017 Mega-Tins Mega Pack "One day every pillar will

"One day every pillar will be a tree and every hall a glade

until the opponent's next End Phase

or Winged Beast-Type monster: Draw 1 card for each of those Monster Types you control

and the card that left the field was "Stardust Dragon" or a Synchro Monster that listed "Stardust Dragon" in its text: You can apply 1 of the following effects

Form of the Dinosaur [Rivals of Ixalan] 2017 Mega-Tins Mega Pack "One day every pillar willSet: Rivals of Ixalan Type: Enchantment Rarity: Rare Cost: {4}{R}{R} When Form of the Dinosaur enters the battlefield, your life total becomes 15. At the beginning of your upkeep, Form of the Dinosaur deals 15 damage to target creature an opponent controls and that creature deals damage equal to its power to you.