Painful Bond

As an additional cost to cast this spell, sacrifice an artifact or creature.

You gain life equal to the sacrificed permanent's mana value. Draw two cards.

Change the target of target spell with a single target. You lose life equal to that spell's mana value.

Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.)

If this spell was bargained, look at the top four cards of your library, then put up to two of them back on top of your library in any order and the rest into your graveyard.

You draw two cards and you lose 2 life.

Target opponent sacrifices a nontoken creature. If that creature had mana value 2 or less, conjure a duplicate of it into your hand. That duplicate perpetually gains "You may spend mana as though it were mana of any color to cast this spell."

As an additional cost to cast this spell, you may sacrifice one or more creatures. When you do, copy this spell for each creature sacrificed this way.

You draw a card and you lose 1 life.

Converge — You draw X cards and lose X life, where X is the number of colors of mana spent to cast this spell.