mtg.wtf

As this artifact enters, choose an opponent.
At the beginning of the chosen player's upkeep, this artifact deals X damage to that player, where X is the number of cards in their hand minus 4.

Threshold — As long as seven or more cards are in your graveyard, this creature has "When this creature enters, draw three cards, then discard two cards."

Flying
Extort

This creature enters with a +1/+1 counter on it.
When this creature dies, put its counters on target creature you control.

As an additional cost to cast this spell, sacrifice a creature.
Creatures you control gain indestructible until end of turn. Put a +1/+1 counter on each creature you control.

Attacking creatures you control get +1/+0.

Menace

As an additional cost to cast this spell, sacrifice a creature.
Flying
Trample
When this creature enters, each opponent sacrifices a creature.

Whenever another creature you control enters, this creature gets +2/+2 until end of turn.

Whenever another white creature you control enters, tap target creature an opponent controls.

Roll a six-sided die. Assemble a number of Contraptions equal to the result. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, create a 1/1 red Phyrexian Goblin creature token with haste.
When this creature enters, create X 1/1 red Phyrexian Goblin creature tokens with haste, where X is the number of creatures you control.

I — Incubate 2 five times, then transform all Incubator tokens you control.
II — Creatures you control get +1/+1 and gain double strike until end of turn.
III — Destroy all other permanents except for artifacts, lands, and Phyrexians. Exile this Saga, then return it to the battlefield.

Return up to one target permanent card from your graveyard to your hand. Discover 4.

Whenever an opponent discards a card, you may draw a card.

At the beginning of combat on your turn, up to one target creature gets +2/+0 and gains firebending 2 until end of turn.
{R}: Put a charge counter on this artifact.
Remove fifty charge counters from this artifact: It deals 50 damage to any target.

Flying, trample
Whenever one or more opponents each lose exactly 1 life, put a +1/+1 counter on Ob Nixilis. Exile the top card of your library. Until your next end step, you may play that card.

When this creature enters, tap up to one target creature. If an opponent controls that creature, put a stun counter on it.

Defender
{3}, {T}: Target creature can't be blocked this turn.

Flying, haste
When Karrthus enters, gain control of all Dragons, then untap all Dragons.
Other Dragon creatures you control have haste.

{X}{1}, {T}: Put X charge counters on this artifact. Activate only as a sorcery.
At the beginning of your first main phase, if this artifact has a charge counter on it, tap it and remove all charge counters from it. Add {C} for each charge counter removed this way.

When this creature enters, if you control another Elf, create a 1/1 green Elf Warrior creature token.

Target attacking creature gets +X/+0 until end of turn.
Draw a card at the beginning of the next turn's upkeep.

Flying
Whenever another permanent you control enters, look at the top card of your library. If it shares a card type with that permanent, you may reveal that card and put it into your hand.

{B}, Pay 1 life: This creature gets +1/+0 until end of turn. Activate no more than three times each turn.