When Aether Adept enters the battlefield, return target creature to its owner's hand.

When Alchemist's Vial enters the battlefield, draw a card.

{1}, {T}, Sacrifice Alchemist's Vial: Target creature can't attack or block this turn.

Alirios, Enraptured enters the battlefield tapped.

Alirios doesn't untap during your untap step if you control a Reflection.

When Alirios enters the battlefield, create a 3/2 blue Reflection creature token.

Whenever a creature enters the battlefield under your control, you gain 1 life. If Answered Prayers isn't a creature, it becomes a 3/3 Angel creature with flying in addition to its other types until end of turn.

{U}, {T}: Add {C}{C}{C}.

When Aquatic Incursion enters the battlefield, create two 1/1 blue Merfolk creature tokens with hexproof. (They can't be the targets of spells or abilities your opponents control.)

{3}{U}: Target Merfolk can't be blocked this turn.

Azorius Chancery enters the battlefield tapped.

When Azorius Chancery enters the battlefield, return a land you control to its owner's hand.

{T}: Add {W}{U}.

{T}: Add {W} or {U}.

{W}{U}, {T}, Sacrifice Azorius Cluestone: Draw a card.

Azorius Guildgate enters the battlefield tapped.

{T}: Add {W} or {U}.

When Azorius Justiciar enters the battlefield, detain up to two target creatures your opponents control. (Until your next turn, those creatures can't attack or block and their activated abilities can't be activated.)

{T}: Add {W} or {U}.

{W/U}{W/U}{W/U}{W/U}, {T}, Sacrifice Azorius Locket: Draw two cards.

When Blade Splicer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

Golems you control have first strike.

Flying

Whenever Brago, King Eternal deals combat damage to a player, exile any number of target nonland permanents you control, then return those cards to the battlefield under their owner's control.

Flying

When Cloudblazer enters the battlefield, you gain 2 life and draw two cards.

When Cloudform enters the battlefield, it becomes an Aura with enchant creature. Manifest the top card of your library and attach Cloudform to it. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Enchanted creature has flying and hexproof.

When Cloudgoat Ranger enters the battlefield, create three 1/1 white Kithkin Soldier creature tokens.

Tap three untapped Kithkin you control: Cloudgoat Ranger gets +2/+0 and gains flying until end of turn.

Daxos's toughness is equal to your devotion to white. (Each {W} in the mana costs of permanents you control counts toward your devotion to white.)

Whenever another creature you control enters the battlefield or dies, you gain 1 life.

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Counter target spell. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

When Dovin's Acuity enters the battlefield, you gain 2 life and draw a card.

Whenever you cast an instant spell during your main phase, you may return Dovin's Acuity to its owner's hand.

Devoid (This card has no color.)

When Drowner of Hope enters the battlefield, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add {C}."

Sacrifice an Eldrazi Scion: Tap target creature.

Devoid (This card has no color.)

Flying

When Eldrazi Skyspawner enters the battlefield, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."

When Enlightened Maniac enters the battlefield, create a 3/2 colorless Eldrazi Horror creature token.

When Evangel of Heliod enters the battlefield, create a number of 1/1 white Soldier creature tokens equal to your devotion to white. (Each {W} in the mana costs of permanents you control counts toward your devotion to white.)

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

When Exclusion Mage enters the battlefield, return target creature an opponent controls to its owner's hand.

Imprint -- When Exclusion Ritual enters the battlefield, exile target nonland permanent.

Players can't cast spells with the same name as the exiled card.

Flying

When Experimental Aviator enters the battlefield, create two 1/1 colorless Thopter artifact creature tokens with flying.

When Forbidding Spirit enters the battlefield, until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays {2} for each of those creatures.

Vigilance

When Glimmerpoint Stag enters the battlefield, exile another target permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

{T}: Add {W}.

When Golden Egg enters the battlefield, draw a card.

{1}, {T}, Sacrifice Golden Egg: Add one mana of any color.

{2}, {T}, Sacrifice Golden Egg: You gain 3 life.

When Guild Globe enters the battlefield, draw a card.

{2}, {T}, Sacrifice Guild Globe: Add two mana of different colors.

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

Whenever another creature enters the battlefield under your control, you gain 1 life.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

When Jeering Homunculus enters the battlefield, you may goad target creature. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

When Lashknife Barrier enters the battlefield, draw a card.

If a source would deal damage to a creature you control, it deals that much damage minus 1 to that creature instead.

When Lightform enters the battlefield, it becomes an Aura with enchant creature. Manifest the top card of your library and attach Lightform to it. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Enchanted creature has flying and lifelink.

When Man-o'-War enters the battlefield, return target creature to its owner's hand.

When Mana Geode enters the battlefield, scry 1.

{T}: Add one mana of any color.

When Master Splicer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

Golems you control get +1/+1.

Meandering River enters the battlefield tapped.

{T}: Add {W} or {U}.

When Meteor Golem enters the battlefield, destroy target nonland permanent an opponent controls.

When Myr Battlesphere enters the battlefield, create four 1/1 colorless Myr artifact creature tokens.

Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking.

Counter target noncreature spell.

Flash

When Omen of the Sea enters the battlefield, scry 2, then draw a card.

{2}{U}, Sacrifice Omen of the Sea: Scry 2.

Flash

When Omen of the Sun enters the battlefield, create two 1/1 white Human Soldier creature tokens and you gain 2 life.

{2}{W}, Sacrifice Omen of the Sun: Scry 2.

{T}: Add {C}{C}.

Enchant creature

As Pentarch Ward enters the battlefield, choose a color.

When Pentarch Ward enters the battlefield, draw a card.

Enchanted creature has protection from the chosen color. This effect doesn't remove Pentarch Ward.

Imprint -- When Phyrexian Ingester enters the battlefield, you may exile target nontoken creature.

Phyrexian Ingester gets +X/+Y, where X is the exiled creature card's power and Y is its toughness.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

{T}: Add {C}.

{1}, {T}: Add one mana of any color.

When Prophetic Prism enters the battlefield, draw a card.

{1}, {T}: Add one mana of any color.

When Prosperous Pirates enters the battlefield, create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

When Reverent Hoplite enters the battlefield, create a number of 1/1 white Human Soldier creature tokens equal to your devotion to white. (Each {W} in the mana costs of permanents you control counts toward your devotion to white.)

Flying

When Riftwing Cloudskate enters the battlefield, return target permanent to its owner's hand.

Suspend 3--{1}{U} (Rather than cast this card from your hand, you may pay {1}{U} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. It has haste.)

When Riverwise Augur enters the battlefield, draw three cards, then put two cards from your hand on top of your library in any order.

When Sailor of Means enters the battlefield, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

When Sea Gate Oracle enters the battlefield, look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

{T}: Add {C}.

{1}, {T}: Add {U}.

Enchant creature

When Sisay's Ingenuity enters the battlefield, draw a card.

Enchanted creature has "{2}{U}: Target creature becomes the color of your choice until end of turn."

Constellation -- Whenever Skybind or another enchantment enters the battlefield under your control, exile target nonenchantment permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

When Sleeper Dart enters the battlefield, draw a card.

{T}, Sacrifice Sleeper Dart: Target creature doesn't untap during its controller's next untap step.

Tranquil Cove enters the battlefield tapped.

When Tranquil Cove enters the battlefield, you gain 1 life.

{T}: Add {W} or {U}.

When Trial of Knowledge enters the battlefield, draw three cards, then discard a card.

When a Cartouche enters the battlefield under your control, return Trial of Knowledge to its owner's hand.

When Urbis Protector enters the battlefield, create a 4/4 white Angel creature token with flying.

When Vessel of Endless Rest enters the battlefield, put target card from a graveyard on the bottom of its owner's library.

{T}: Add one mana of any color.

When War Priest of Thune enters the battlefield, you may destroy target enchantment.

When Whirler Rogue enters the battlefield, create two 1/1 colorless Thopter artifact creature tokens with flying.

Tap two untapped artifacts you control: Target creature can't be blocked this turn.