1BBB
Enchantment
3, Tap an untapped permanent you control: up to one target green enchantments are black until end of turn
4, Sacrifice a creature: target green creature gets -2/-2 until end of turn
All white creatures get -4/-4

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G
Creature - Human Druid (2/1)
When ~this~ is put into a graveyard from the battlefield, target opponent may Tap an untapped basic land he or she controls. If that player does, two target artifact creatures get +4/+4 until end of turn
Whenever ~this~ leaves the battlefield, regenerate up to one target creatures and regenerate those creatures

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R
Artifact Creature - Human Rogue (2/1)
If you would draw a card, instead that player adds 3R to his or her mana pool
3BR, Tap an untapped permanent you control: put a speed counter on target creature
1, Tap an untapped permanent you control: each permanent with a speed counter on it gains ''Whenever you cast a artifact spell, you may Sacrifice ~this~. If you don't, copy target activated ability from a permanent source and you may choose new targets for the copy'' until end of turn
--Her stove twists even one actor but folds more daintily than the confused swing
– Unattributed (dead)

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AlexChurchill/MagicCardGenerator