it would be humorous to have a 2/2 lizard with annihilator 6

An endless, unfathomable hunger
a monster from the blind eternities
an obliterator of worlds
whose diet consists of small insects

A cycle:
Wing Forger
Creature - Human Wizard
Flying
Sacrifice ~: creatures you control gain flying until end of turn.
2/3

Fury Forger
Creature - Human Wizard
Haste
Sacrifice ~: creatures you control gain haste until end of turn.
2/2

Might Forger
Creature - Human Wizard
Trample
Sacrifice ~: creatures you control get +1/+1 and gain trample until end of turn.
2/3

Pike Forger
Creature - Human Wizard
First strike
Sacrifice ~: creatures you control gain first strike until end of turn.
1/1

Death Forger
Creature - Human Wizard
Deathtouch
Sacrifice ~: creatures you control gain deathtouch until end of turn.
1/1

Cloak//Dagger //
Instant
Target creature you control gains protection from the color of your choice until end of turn.
//
Target creature gains deathtouch until end of turn.
Fuse

Fight//Flight //
Instant
Until end of turn, whenever target creature deals combat damage to a player, draw 2 cards.
//
Target creature gains flying until end of turn.
Draw a card
Fuse

A cycle of less targeted hatecards:

Revert
Instant
Return target creature to its owner's hand. If that creature was red or green, draw a card.

Counterstrike
Instant
Exile target attacking creature. If that creature was black or red, draw a card.

Wild Hunt
Sorcery
Target creature you control fights target creature. If the second creature was blue or black, draw a card.

Harsh Drought
Sorcery
Destroy target land. If that land could produce blue or white mana, draw a card.

Seize
Sorcery
Target opponent reveals his or her hand. You choose a creature card from it. That player discards that card. If that card was green or white, draw a card.

Bear Familiar
Creature - Bear
Sacrifice ~: target creature gets +2/+2 until end of turn.
2/2
Large and fierce, a bear familiar grants its master boundless might in battle.

Cat Familiar
Creature - Cat
As long as it isn't your turn, spells you control cost less to cast.
1/3
Agile and cunning, a cat familiar grants its master boundless guile in battle
This might break solidarity in legacy, but screw legacy.

Dragon Familiar
Creature - Dragon
Flying
Whenever you cast an instant or sorcery spell, ~ deals 1 damage to target creature or player.
1/1
Fiery and aggressive, a dragon familiar grants its master boundless charred corpses in battle.

Luminous Familiar
Creature - Spirit
If a source would deal damage to a creature you control, it deals that much damage minus 1 instead.
2/1
Benevolent and protective, a luminous familiar grants its master boundless vitality in battle.

Imp Familiar
Creature - Imp
Flying
~ can't block.
If you would draw a card, instead look at the top 2 cards of your library, put one into your hand and the other on the bottom of your library, and you lose 1 life.
2/1
Sinister and sadistic, an imp familiar grants its master knowledge bounded only by their willingness to pay for it.

Toxic Shock
Instant
Choose one - target creature gets -0/-2 until end of turn, or target player loses 2 life.

Love the flavor on Imp Familiar.

~SE++

Left For Dead
Enchantment
Sacrifice a creature: regenerate target creature.
Abandon your friends, save your self.

Omnislash
Instant
Choose a creature without lethal damage marked on it that you don't control at random. ~ deals 1 damage to that creature. Repeat this process 3 times.

Manipulate
Enchantment - Aura
Enchant creature
You choose how enchanted creature attacks and blocks.

Duskmantle Librarian
Creature - Human Advisor
When ~ enters the battlefield, draw a card.
When ~ dies, discard a card.
1/3
The Dimir allow the borrowing of books, provided that they are returned.

Dust in the Wind
Enchantment
Other permanents have vanishing 3.
Nothing lasts forever but the earth and sky...

p/t?

1/3, thanks for reminding me.

Three-Toed Sloth
Creature - Sloth
Whenever ~ attacks, it doesn't untap during your next untap step.
4/4

Temple of Enlightenment
Land
: Add to your mana pool.
, Tap each other land you control and empty your mana pool: add one mana of any color to your mana pool.
To attain enlightenment, one must forsake all else

I kinda like that it has to be the last land you tap down... creative restriction.

~SE++

It seems kinda useless. After casting all the one drops of the rainbow, you will only use its colorless. It's balanced, but doesn't seem to have the functionality that SE describes.

But rainbow 1drops...
Also, keep in mind that you can use it, then make your land drop.

Good for the early game, and I could see a tricolor good stuff run it, it's just not to my taste.

It certainly doesn't belong in every deck:

Anyways, I've decided to bring the fun of rat doto to MTG:

Nature's Prophet
Creature - Elemental
Shroud
: Put 4 1/1 green treefolk creature tokens with "sacrifice this creature at the beginning of your end step" onto the battlefield.
4/4

Sanity's Eclipse
Instant
~ deals damage to target player equal to 4 times the number of cards in your hand minus 4 times the number of cards in their hand.

Illuminating Blast
Instant
Until end of turn, whenever a creature attacks you or blocks a creature you control, ~ deals 3 damage to that creature.
Draw a card.

Echo Slam
Sorcery
Each creature you don't control deals 1 damage to each creature you don't control.

Poison Nova
Instant
~ deals damage to each creature you don't control equal to their toughness minus 1.

Flak Cannon
Artifact - Equipment
If equipped creature would deal combat damage, it deals that much damage to each opponent and each creature you don't control instead.
Equip

Lifebreak :B::W::R:
Sorcery
~ deals damage to each player equal to half their life total, rounded up. Creatures can't block this turn.

Epicenter
Sorcery
~ deals 4 damage to each creature you don't control.
Suspend 3

Bear Familiar
Creature - Bear Spirit
When ~ dies, it deals 4 damage to you, then exile it with 3 time counters on it, and it gains suspend.
3/3
A druid's familiar may return from death, but the wound to his heart shall never heal.

Edict of Leshrac
Sorcery
Target player sacrifices a creature. If they can't, that player sacrifices a land.