mtg.wtf

Target creature gets +2/+2 and gains trample until end of turn.
Flashback {2}{G}{G}

Changeling
Champion a creature
Lifelink

Target creature you control deals X damage to any other target and X damage to itself, where X is its power.

Counter target spell. You may cast a creature, instant, sorcery, or planeswalker spell from your graveyard with mana value less than or equal to that spell's mana value without paying its mana cost.

Enchant creature card in a graveyard
When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

Destroy target artifact and all other artifacts with the same name as that artifact.

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.

Flying
{5}{U}{U}: Draw a card for each color among permanents you control.
{5}{U}{U}, Exile this card from your graveyard: Draw a card for each color among permanents you control.

You have no maximum hand size.
Sonic Booster — Whenever Nyssa of Traken attacks, sacrifice any number of artifacts. When you sacrifice one or more artifacts this way, tap up to that many target creatures and draw that many cards.
Doctor's companion

Search target opponent's library for an artifact card and put that card onto the battlefield under your control. Then that player shuffles.

When this creature enters, you may say "INCARCERATE!" in a robot voice. If you do, exile another target artifact or enchantment until this creature leaves the battlefield.

Whenever an opponent casts a spell from their hand, you may reveal the top card of your library. If it shares a card type with that spell, counter that spell and that opponent may cast the revealed card without paying its mana cost.

{B}: This creature gets +1/+1 until end of turn.
Undying

When this enchantment enters, creatures you control get +2/+1 and gain vigilance until end of turn.
When a Cartouche you control enters, return this enchantment to its owner's hand.

Prevent the next X damage that would be dealt to target creature this turn, where X is your devotion to white. If damage is prevented this way, Acolyte's Reward deals that much damage to any target.

When this creature enters, seek a land card and put it onto the battlefield tapped.
When this creature leaves the battlefield, seek a nonland card.
Warp {4}

Whenever another Goblin you control enters, you may pay {1}. If you do, this creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

This creature enters with four -1/-1 counters on it.
{G/U}: This creature gains shroud until end of turn.
Whenever you cast a green spell, remove a -1/-1 counter from this creature.
Whenever you cast a blue spell, remove a -1/-1 counter from this creature.

This land enters tapped.
{T}: Add {W} or {B}.

You may mill three cards. Then return up to two creature and/or land cards from your graveyard to your hand.

Prowess
Noncreature spells you cast cost {1} less to cast.
As long as you've cast two or more noncreature spells this turn, Lyse Hext has double strike.

Creatures you control have flying.
Creatures your opponents control lose flying and can't have or gain flying.

As long as you control a Dovin planeswalker, this creature gets +2/+2 and has vigilance.

Whenever another artifact you control enters, put a +1/+1 counter on this creature. If that artifact is a Contraption, this creature gains lifelink until end of turn.

You may have The Misty Stepper enter as a copy of a creature you control, except its name is The Misty Stepper and it has its other abilities.
The Misty Stepper can't be blocked.
Spells you cast have split second. (As long as that spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)