At the beginning of each player's upkeep, that player reveals a card at random from their hand. If it's a land card, the player puts it onto the battlefield. Otherwise, the player casts it without paying its mana cost if able.
If Leyline of Vitality is in your opening hand, you may begin the game with it on the battlefield.Creatures you control get +0/+1.Whenever a creature you control enters, you may gain 1 life.
FlyingWhen this creature enters, you may search your library for an artifact card, exile it, then shuffle.When this creature dies, you may put the exiled card into its owner's hand.
Enchant creatureEnchanted creature has "At the beginning of your upkeep, sacrifice this creature."When enchanted creature dies, its controller chooses target creature one of their opponents controls. Return Necrotic Plague from its owner's graveyard to the battlefield attached to that creature.
FlyingWhen Augury Owl enters, scry 3. (Look at the top three cards of your library, then put any number of them on the bottom and the rest on top in any order.)
Exile all cards from target player's graveyard other than basic land cards. For each card exiled this way, search that player's library for all cards with the same name as that card and exile them. Then that player shuffles.
When Obstinate Baloth enters, you gain 4 life.If a spell or ability an opponent controls causes you to discard Obstinate Baloth, put it onto the battlefield instead of putting it into your graveyard.