Wavebreak Hippocamp (Extended Art) [Theros Beyond Death] Zombie Manticore Set: Core Set 2019 Prerelease

Set: Core Set 2019 Prerelease Promos Type: Legendary Creature — Elder Dragon Rarity: Mythic Cost: {3}{R}{G}{W} Flying

If you searched your library this way

Set: Commander 2013 Oversized Type: Legendary Creature — Human Artificer Rarity: Mythic Cost: {W}{U}{B} {U}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn

Set: Conflux Type: Creature — Elemental Shapeshifter Rarity: Mythic Cost: {3}{G}{G} {G}: Thornling gains haste until end of turn

"It was in Urza's journals that I finally found the secret at the core of the summonings

Wavebreak Hippocamp (Extended Art) [Theros Beyond Death] Zombie Manticore Set: Core Set 2019 PrereleaseSet: Theros Beyond Death Type: Enchantment Creature Horse Fish Rarity: Rare Cost: {2}{U} Whenever you cast your first spell during each opponent's turn, draw a card. Tritons search for omens in its wake.