Double strike

Whenever Warren Instigator deals damage to an opponent, you may put a Goblin creature card from your hand onto the battlefield.

Haste, double team (When this creature attacks, conjure a duplicate into your hand, then both of them perpetually lose double team.)

Hideaway 4 (When this creature enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Watcher for Tomorrow enters the battlefield tapped.

When Watcher for Tomorrow leaves the battlefield, put the exiled card into its owner's hand.

Reach (This creature can block creatures with flying.)

Watcher in the Web can block an additional seven creatures each combat.

Flying

Morph—Reveal a white card in your hand. (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Watcher of the Roost is turned face up, you gain 2 life.

All Sliver creatures get +0/+2.

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

When Watchful Giant enters the battlefield, create a 1/1 white Human creature token.

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Whenever Watchful Radstag evolves, create a token that's a copy of it.

As Water Gun Balloon Game enters the battlefield, each player puts a pop counter on "0."

Whenever a player casts a spell, move that player's pop counter up one.

Whenever a player's pop counter hits "5," that player creates a 5/5 pink Giant Teddy Bear creature token and resets all pop counters to "0."

Whenever Water Weird deals combat damage to a player, put a +1/+1 counter on Water Weird if the top card of your library is a nonland card. Otherwise, you may mill a card.

Water Wurm gets +0/+1 as long as an opponent controls an Island.

Flying

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

Waterfront District enters the battlefield tapped.

: Add or .

, , Sacrifice Waterfront District: Draw a card.

Enchant creature

When Waterknot enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

: Mill a card. (Put the top card of your library into your graveyard.)

Craft with Island (, Exile this artifact, Exile an Island you control or an Island card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

Flying

At the beginning of your upkeep, sacrifice Waterspout Djinn unless you return an untapped Island you control to its owner's hand.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Waterspout Weavers, you may reveal it. If you do, each creature you control gains flying until end of turn.

When Watertrap Weaver enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Return up to two target creatures to their owners' hands.

(: Add or .)

As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

When Waylaying Pirates enters the battlefield, if you control an artifact, tap target artifact or creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Enchant artifact or creature

When Weakstone's Subjugation enters the battlefield, you may pay . If you do, tap enchanted permanent.

Enchanted permanent doesn't untap during its controller's untap step.

As long as Weathered Bodyguards is untapped, all combat damage that would be dealt to you by unblocked creatures is dealt to Weathered Bodyguards instead.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Defender, vigilance, reach, trample

Weathered Sentinels can attack players who attacked you during their last turn as though it didn't have defender.

Whenever Weathered Sentinels attacks, it gets +3/+3 and gains indestructible until end of turn.

Flying

Whenever Weatherlight deals combat damage to a player, look at the top five cards of your library. You may reveal a historic card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. (Artifacts, legendaries, and Sagas are historic.)

Crew 3

: Target creature gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.)

: Add .

: Weatherseed Totem becomes a 5/3 green Treefolk artifact creature with trample until end of turn.

When Weatherseed Totem is put into a graveyard from the battlefield, if it was a creature, return this card to its owner's hand.

Draw two cards.

: Welder Automaton deals 1 damage to each opponent.

Skulk (This creature can't be blocked by creatures with greater power.)

Whenever Wharf Infiltrator deals combat damage to a player, you may draw a card. If you do, discard a card.

Whenever you discard a creature card, you may pay . If you do, create a 3/2 colorless Eldrazi Horror creature token.

Target creature gets -X/-X until end of turn, where X is the number of times the letter of your choice appears in that creature's name.

Starting with you, each player separates all permanents they control into three piles. Then each player chooses one of their piles at random and sacrifices those permanents. (Piles can be empty.)

, : Put a charge counter on White Mana Battery.

, Remove any number of charge counters from White Mana Battery: Add , then add an additional for each charge counter removed this way.

Who

oXoW

Instant

Target player gains X life.

//

What

o2oR

Instant

Destroy target artifact.

//

When

o2oU

Instant

Counter target creature spell.

//

Where

o3oB

Instant

Destroy target land.

//

Why

o1oG

Instant

Destroy target enchantment.

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.

At the beginning of your end step, untap all lands you control.

You may choose not to untap Willow Satyr during your untap step.

: Gain control of target legendary creature for as long as you control Willow Satyr and Willow Satyr remains tapped.

Destroy all creatures that aren't enchanted. They can't be regenerated.

Flying

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Wingbeat Warrior is turned face up, target creature gains first strike until end of turn.

Flying

Raid — When Wingmate Roc enters the battlefield, if you attacked this turn, create a 3/4 white Bird creature token with flying.

Whenever Wingmate Roc attacks, you gain 1 life for each attacking creature.

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Winnower Patrol, you may reveal it. If you do, put a +1/+1 counter on Winnower Patrol.

Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it. If its toughness is 0 or less, it's still put into its owner's graveyard.)

When Woodcaller Automaton enters the battlefield, if you cast it, untap target land you control. It becomes a Treefolk creature with haste and base power and toughness equal to Woodcaller Automaton's power and toughness. It's still a land.

//PRT-Prototype_Mech//

Prototype (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

3/3

After the first postcombat main phase this turn, there's an additional combat phase followed by an additional main phase. At the beginning of that combat, untap all creatures that attacked this turn.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Destroy all creatures. They can't be regenerated.

Put a manabond counter on all creatures. (They lose all other abilities and become lands with ": Add one mana of this card's color.")

Trample

Whenever a Dinosaur you control is dealt damage, it deals that much damage to any target that isn't a Dinosaur.

Enchant creature

Enchanted creature gets +X/+X, where X is the number of creature cards in your graveyard.