2BB
Enchantment - Aura
Enchant enchantment
Whenever an opponent sacrifices a permanent, draw a card for each colour among permanents an opponent controls
When ~this~ is put into a graveyard from the battlefield, target opponent may pay UB. If that player does, target opponent gains 1 life
Whenever enchanted enchantment becomes untapped, you reveal the top seven cards of your library. you put a creature card from among them into play, and exile the rest.
Whenever enchanted enchantment leaves the battlefield, draw six cards
--His fireman enlarges the fiercest goose
– Unattributed



3GG
Artifact
Sacrifice a tapped Plains: target enchantment gains ''When ~this~ is exiled, two target creatures get +3/+1 until end of turn'' until end of turn
Threshold - If you have seven or more cards in your graveyard, any player may cast creature spells without paying their mana cost


B
Sorcery
Choose one: ~this~ deals 4 damage to target player with X life, where X is your life total. If a creature damaged this way would be put into a graveyard this turn, exile it instead and that player may search his or her library for a creature card, reveal it, and put it into his or her hand. If that player does, that player shuffles that library afterwards.; or you put three 1/2 black Cleric creature tokens onto the battlefield; or destroy target creature. It can't be regenerated.

AlexChurchill/MagicCardGenerator