mtg wurm cards Siege [Magic 2015] you gain 5 life. Wurm (#1306) (foil)

That token has enchant creature and "Enchanted creature gets +2/+2 and is goaded." Whenever a goaded creature deals combat damage to one of your opponents, investigate

Of course, one of the most valuable printings of this one-use, mana-ramping artifact is via From the Vault: Exiled, where the modern card frame and unusual foiling method push this cards market value close to $75 not bad for zero mana

But other archetypes will also be happy to cast extra cards from the top of their library just as much

As you can see here, if you promise a gift then your opponent draws a card

Galadriels Dismissal One mana to protect a creature is fine

Once transformed, you can utilize his -3 ability to cast instants or sorceries from your graveyard, essentially drawing from a well of past spells