Thousand-Year Elixir

You may activate abilities of creatures you control as though those creatures had haste.
{1}, {T}: Untap target creature.

Svella, Ice Shaper

{3}, {T}: Create a colorless snow artifact token named Icy Manalith with "{T}: Add one mana of any color."
{6}{R}{G}, {T}: Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Puppet Strings

{2}, {T}: You may tap or untap target creature.

Worldfire

Exile all permanents. Exile all cards from all hands and graveyards. Each player's life total becomes 1.