Form of the Dinosaur [Rivals of Ixalan] 2017 Mega-Tins Mega Pack "and I suspect Gerrard did

"and I suspect Gerrard did not choose his

and resolve in sequence

Once per turn: You can banish 1LIGHT monster from you Graveyard

until the opponent's next End Phase

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 "and I suspect Gerrard didSet: 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.