At the beginning of the end step, if no creatures are on the battlefield, sacrifice Withering Wisps.

: Withering Wisps deals 1 damage to each creature and each player. Activate no more times each turn than the number of snow Swamps you control.

Target creature you control 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.)

Cycling (, Discard this card: Draw a card.)

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.)

Flying

: Scry 1.

Devoid (This card has no color.)

Target opponent exiles two cards from their hand and loses 2 life.

Target player discards their hand.

Alliance — Whenever another creature you control enters, Witty Roastmaster deals 1 damage to each opponent.

This spell costs less to cast if you control a Wizard.

Wizard's Lightning deals 3 damage to any target.

When this creature enters, you may put a name sticker on it, then look at the top X cards of your library, where X is the number of unique vowels on that sticker. Put one of those cards into your hand and the rest on the bottom of your library in any order. (The vowels are A, E, I, O, U, and Y.)

Wizard's Rockets enters tapped.

, , Sacrifice Wizard's Rockets: Add X mana in any combination of colors.

When Wizard's Rockets is put into a graveyard from the battlefield, draw a card.

Psionic Adept — Whenever Wizened Githzerai becomes blocked by a creature, that creature perpetually gets -2/-0.

When Woe Strider enters, create a 0/1 white Goat creature token.

Sacrifice another creature: Scry 1.

Escape—, Exile four other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Woe Strider escapes with two +1/+1 counters on it.

Flying, vigilance

At the beginning of your upkeep, investigate once for each opponent who has more cards in hand than you. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Target creature you control gets +2/+0 until end of turn if it's night. Then it deals damage equal to its power to target creature you don't control.

Multikicker (You may pay an additional any number of times as you cast this spell.)

When Wolfbriar Elemental enters, create a 2/2 green Wolf creature token for each time it was kicked.

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)

As long as Wolfir Silverheart is paired with another creature, each of those creatures gets +4/+4.

As Wood Elemental enters, sacrifice any number of untapped Forests.

Wood Elemental's power and toughness are each equal to the number of Forests sacrificed as it entered.

When Woodcaller Automaton enters, 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

: Add .

, : Add , , or .

Equipped creature gets +1/+0.

Whenever equipped creature blocks or becomes blocked by a Vampire, destroy that creature. It can't be regenerated.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Woodland Cemetery enters tapped unless you control a Swamp or a Forest.

: Add or .

Vigilance

Woodland Stream enters tapped.

: Add or .

Trample

Parley — Whenever Woodvine Elemental attacks, each player reveals the top card of their library. For each nonland card revealed this way, attacking creatures you control get +1/+1 until end of turn. Then each player draws a card.

, : Target Forest becomes a 4/4 black and green Elemental Horror creature. It's still a land.

Woolly Mammoths has trample as long as you control a snow land.

Destroy target Wall. It can't be regenerated. Word of Blasting deals damage equal to that Wall's mana value to the Wall's controller.

As Working Stiff enters, straighten your arms.

When you bend an elbow, sacrifice Working Stiff.

After the second 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.)

Flying

You may cast Worldheart Phoenix from your graveyard by paying rather than paying its mana cost. If you do, it enters with two +1/+1 counters on it.

Create a 1/1 black and green Worm creature token for each land card in your graveyard.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Flying

When Wormfang Manta enters, you skip your next turn.

When Wormfang Manta leaves the battlefield, you take an extra turn after this one.

When Wormfang Turtle enters, exile a land you control.

When Wormfang Turtle leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Players can't play lands.

Lands can't enter the battlefield.

At the beginning of each upkeep, any player may sacrifice two lands or have Worms of the Earth deal 5 damage to that player. If a player does either, destroy Worms of the Earth.

Worn Powerstone enters tapped.

: Add .

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

At the beginning of your upkeep, you may return target Goblin card from your graveyard to your hand.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)

As an additional cost to cast this spell, sacrifice a creature.

You gain life equal to the sacrificed creature's toughness.

: Add one mana of any color.

, : Another target creature gets +3/+3 and gains trample until end of turn.

Target creature deals damage to itself equal to its power.

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.")

Wrathful Jailbreaker attacks each combat if able.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

Flying

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

Flash

When Wreck Hunter enters, choose target player. You create a tapped Powerstone token for each nonland card in that player's graveyard that was put there from the battlefield this turn. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Champion an Elf (When this creature enters, sacrifice it unless you exile another Elf you control. When this creature leaves the battlefield, that card returns to the battlefield.)

: Create a 2/2 green Wolf creature token.

Wolves you control have deathtouch.

Destroy target creature if it has the least power or is tied for least power among creatures on the battlefield.

When Wretched Camel dies, if you control a Desert or there is a Desert card in your graveyard, target player discards a card.

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, draw a card.

Flying

Islandwalk, swampwalk (This creature can't be blocked as long as defending player controls an Island or a Swamp.)

Whenever Wrexial, the Risen Deep deals combat damage to a player, you may cast target instant or sorcery card from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.

Return target creature card from your graveyard to the battlefield tapped.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)