Target player loses 2 life and you gain 2 life.
Retrace

Target creature gets -6/-6 until end of turn. You gain 2 life.

Each other player sacrifices a creature. You create a 2/2 black Zombie creature token for each creature sacrificed this way.

Counter target creature or planeswalker spell. Create a Blood token.

Exile all creatures you control. At the beginning of the next end step, reveal cards from the top of your library until you reveal that many creature cards, put all creature cards revealed this way onto the battlefield, then shuffle the rest of the revealed cards into your library.

Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 9+.)
2+: At the beginning of combat on your turn, up to one other target artifact you control becomes an artifact creature with base power and toughness 2/2 and gains flying until end of turn.
9+: Flying, vigilance
4/4

( can be paid with either or 2 life.)
, , Exile a spell you control: Target opponent reveals cards from the top of their library until they reveal a card with mana value equal to 1 plus the exiled spell's mana value. Exile that card, then that player shuffles. You may cast that exiled card without paying its mana cost.

Improvise
You may have this creature enter as a copy of any creature on the battlefield, except it's a Synth artifact creature in addition to its other types.

Haste
Whenever this creature attacks, exile the top card of your library. You may get (two energy counters). If you don't, you may play that card this turn.
, Pay : This creature deals 3 damage to any target.

, : Exile target permanent you control.
, Sacrifice this artifact: Return all cards exiled with this artifact to the battlefield under your control.

When you control no other artifacts, sacrifice this creature.

, : Tap X target noncreature artifacts.
, : Untap X target noncreature artifacts.

, Sacrifice an artifact: Put a +1/+1 counter on this creature. It gains indestructible until end of turn.

Flying
Ward
Whenever Syndicate Recruiter enters, mill four cards. Then if there are five or more mana values among cards in your graveyard, conjure a card named Dig Up the Body into your hand.

Flying
Afterlife 1

Trample
Landfall — Whenever a land you control enters, put two +1/+1 counters on target creature you control.

Flying
As long as there are five or more mana values among cards in your graveyard, this creature gets +2/+2.

Extort
At the beginning of each end step, if you gained 4 or more life this turn, investigate.

, : Tap target creature with power 4 or greater.
, : This creature deals 2 damage to target opponent or planeswalker.

All Sliver creatures have vigilance.

Untap up to two target creatures. They each get +2/+2 until end of turn.

Synchronized Spellcraft deals 4 damage to target creature and X damage to that creature's controller, where X is the number of creatures in your party. (Your party consists of up to one of each Cleric, Rogue, Warrior, and Wizard.)

This spell costs less to cast if you control at least two creatures that share a creature type.
Put target nonland permanent into its owner's library second from the top.

Distribute two +1/+1 counters among one or two target creatures you control. Creatures you control with counters on them gain vigilance and trample until end of turn.
Harmonize

Whenever a Sliver deals combat damage to a player, its controller may draw a card.

When this creature dies, create two 1/1 black Fungus creature tokens with "This token can't block."

Flying
Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature you control has base power 2 until end of turn.

Whenever a creature you control with power equal to its toughness enters, you may pay . If you do, draw a card.