mtg.wtf

Defender
You may look at the top card of your library any time.
You may cast creature spells from the top of your library.
Whenever you cast a creature spell from your library, it becomes a black Bird in addition to its other colors and types, has flying, and has base power and toughness 1/1.

When Ominous Traveler enters the battlefield, draft a card from Ominous Traveler's spellbook. That card perpetually gains "You may spend mana as though it were mana of any color to cast this spell" and "When you cast this spell, return a creature named Ominous Traveler you control to its owner's hand."

When Scrutiny of the Guildpact enters, you may choose a creature card in your hand. If you do, that card perpetually incorporates {W} and gains "When you cast this spell, create a 2/2 white and blue Detective creature token."
Multicolored creatures you control get +1/+1.

Disguise {1}{W}
Whenever Sleuth Instructor or another permanent you control is turned face up, seek a non-Elephant creature card with mana value 3 or less and cloak it. This ability triggers only once.

As an additional cost to cast this spell, you may collect evidence 5.
Flying
When Spotlight Falcon enters, if evidence was collected, conjure a card named Spotlight Falcon into your hand.

When this Case enters, conjure four cards named Fblthp, the Lost into your library, then shuffle. Draw a card.
To solve — You control a legendary Homunculus.
Solved — You may look at the top card of your library any time and you may play lands and cast spells from the top of your library.

Thopters you control get +2/+0.
At the beginning of your upkeep, conjure a card named Ornithopter into your hand.

Flying
Whenever one or more creatures you control deal combat damage to a player, investigate.
{1}, Sacrifice a Clue: Seek an instant or sorcery card.

Choose an instant or sorcery card in your hand or graveyard. That card perpetually incorporates {U} and gains "When you cast this spell, draw a card." Then return a multicolored instant or sorcery card from your graveyard to your hand.

As Ominous Lockbox enters, secretly choose a number between 1 and 20.
When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy.
{2}, Sacrifice Ominous Lockbox: Draw a card.

Flying
When Cackling Observer enters, target opponent reveals each nonland card in their hand. You choose one of those cards and exile it.
When Cackling Observer leaves the battlefield, the exiled card's owner seeks a nonland card with lesser mana value than the exiled card.

When Lurking Spinecrawler enters, you may choose a nonland card in your hand. If you do, that card perpetually incorporates {1}{B} and gains "When you cast this spell, each opponent sacrifices a creature. Each opponent who can't discards a card."
Whenever you cast a multicolored spell, for each of that spell's colors, each opponent loses 1 life and you gain 1 life.

When Perforator Crocodile enters, for each creature your opponents control, conjure a card named Stab Wound onto the battlefield attached to that creature.
Cycling {1}{B}

Whenever Snarlfang Vermin deals combat damage to a creature, if that creature is still on the battlefield, suspect that creature. It perpetually gains this ability.
Whenever a suspected creature an opponent controls dies while Snarlfang Vermin is in your graveyard, that opponent loses 1 life.

When this Case enters, it deals 1 damage to any target.
Damage isn't removed from creatures during cleanup steps.
To solve — Three or more creatures are damaged.
Solved — Whenever you attack with one or more creatures, this Case deals that much damage divided as you choose among any number of targets.

Trample
When Concert Kaboomist enters or is turned face up, it deals X damage to target opponent, where X is the number of noncreature spells you've cast since the beginning of your last turn.
Disguise {R}

When Construction Arsonist enters, you may choose an instant or sorcery card in your hand. If you do, that card perpetually incorporates {R} and gains "When you cast this spell, it deals 2 damage to each opponent."
Whenever you cast a multicolored spell, Construction Arsonist gets +1/+1 until end of turn for each of that spell's colors.

If you aren't the starting player, you may cast Shove Aside as though it had flash.
Shove Aside deals 3 damage to target creature or planeswalker.

When Guildpact Greenwalker enters, you may choose a creature card in your hand. If you do, that card perpetually incorporates {1}{G} and gets +4/+4.
Multicolored creatures you control have ward {2}.

Trample, ward {2}, haste
Rampaging Ursaguana gets +2/+2 for each time this creature attacked this game.
Disguise {2}{G}{G}

Draft a card from Relics of the Rubblebelt's spellbook twice, then put one of those cards onto the battlefield tapped.

At the beginning of each combat, Sproutwatch Dryad gains flying until end of turn if a creature you control or a card in your hand has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

Search your library for a basic land card, reveal it, put it into your hand, then shuffle. It perpetually becomes a Clue artifact in addition to its other types and gains "{2}, Sacrifice this permanent: Draw a card."

Convoke
When Emmara, Voice of the Conclave enters, draft a card from Emmara, Voice of the Conclave's spellbook.

At the beginning of your end step, conjure a card named Slimy Dualleech onto the battlefield if you control no Leeches. Otherwise, put a +1/+1 counter on each Leech you control.
{T}, Sacrifice a creature: Add an amount of {G} equal to the sacrificed creature's power.