When Gravedigger enters the battlefield, you may return target creature card from your graveyard to your hand.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Harbor Serpent can't attack unless there are five or more Islands on the battlefield.

Flying

When Hoarding Dragon enters the battlefield, you may search your library for an artifact card, exile it, then shuffle.

When Hoarding Dragon dies, you may put the exiled card into its owner's hand.

White creatures you control get +1/+1.

Flying

When Howling Banshee enters the battlefield, each player loses 3 life.

Enchant creature

Enchanted creature can't attack or block, and its activated abilities can't be activated.

When enchanted creature becomes the target of a spell or ability, destroy Ice Cage.

: Target attacking creature gets +1/+1 until end of turn.

Creatures you control get +2/+1 until end of turn.

+2: Each player draws a card.

−1: Target player draws a card.

−10: Target player mills twenty cards.

Draw three cards.

Juggernaut attacks each combat if able.

Juggernaut can't be blocked by Walls.

Whenever a player casts a blue spell, you may gain 1 life.

If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield.

You may cast spells as though they had flash.

If Leyline of Sanctity is in your opening hand, you may begin the game with it on the battlefield.

You have hexproof. (You can't be the target of spells or abilities your opponents control.)

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 enters the battlefield under your control, you may gain 1 life.

+1: Target player discards a card.

−2: Search your library for a card, then shuffle and put that card on top.

−8: Put all creature cards from all graveyards onto the battlefield under your control.

Flying

When Liliana's Specter enters the battlefield, each opponent discards a card.

Flying

When Magma Phoenix dies, it deals 3 damage to each creature and each player.

: Return Magma Phoenix from your graveyard to your hand.

When Manic Vandal enters the battlefield, destroy target artifact.

Exile all creatures you control, then reveal cards from the top of your library until you reveal that many creature cards. Put all creature cards revealed this way onto the battlefield, then shuffle the rest of the revealed cards into your library.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Merfolk Spy deals combat damage to a player, that player reveals a card at random from their hand.

Enchant creature

You control enchanted creature.

When Mitotic Slime dies, create two 2/2 green Ooze creature tokens. They have "When this creature dies, create two 1/1 green Ooze creature tokens."

: Add .

, : Exile target attacking creature an opponent controls. At the beginning of the next end step, return it to the battlefield tapped under its owner's control.

Destroy target artifact or enchantment.

Enchant creature

Enchanted 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.

When Obstinate Baloth enters the battlefield, 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.

Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control.

Palace Guard can block any number of creatures.

Indestructible

As Phylactery Lich enters the battlefield, put a phylactery counter on an artifact you control.

When you control no permanents with phylactery counters on them, sacrifice Phylactery Lich.

Flying

You can't lose the game and your opponents can't win the game.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Trample

Whenever Primeval Titan enters the battlefield or attacks, you may search your library for up to two land cards, put them onto the battlefield tapped, then shuffle.

: Prodigal Pyromancer deals 1 damage to any target.

Add .

Enchant creature

Enchanted creature gets -1/-1 for each Swamp you control.

You may choose new targets for target spell.

Copy target instant or sorcery spell. You may choose new targets for the copy.

Defender (This creature can't attack.)

When Roc Egg dies, create a 3/3 white Bird creature token with flying.

Rotting Legion enters the battlefield tapped.

Prevent all damage that would be dealt to you and creatures you control this turn.

Flying, vigilance

Enchant creature

Enchanted creature gets +2/+2 and has flying.

: Enchanted creature gets +1/+0 until end of turn.

Target player draws two cards and loses 2 life.

Destroy target artifact or enchantment. You gain 4 life.

Target creature gets -1/-1 until end of turn. Tap that creature.