Seasoned Witch

If one or more creature cards would be put into
your graveyard from your library, you may exile
them instead. When you do, choose one —
• Create a Tainted Elixir token. (It's an artifact
with ''{2}, {t}, Sacrifice this artifact: Target
opponent loses 3 life.'')
• Create a Noxious Elixir token. (It's an artifact
with ''{2}, {t}, Sacrifice this artifact: Destroy target
creature with mana value 3 or less.'')