Claws of Gix

{1}, Sacrifice a permanent: You gain 1 life.

Smash

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card.

You can't play lands.
Sacrifice a land: Draw two cards. Activate only once each turn.

Change the target of target spell with a single target.

As an additional cost to cast this spell, sacrifice an artifact.
Shrapnel Blast deals 5 damage to any target.

Whenever a player casts a red spell, you may gain 1 life.