Weatherlight is the eleventh Magic expansion, released in 1997 as the third set and second small expansion of the Mirage block. Weatherlight also saw the beginning of the Weatherlight Saga, the most important Magic storyline that would continue through 2001.
It was released on Magic Online on December 12, 2007. Release events began on December 14, 2007.
- "Graveyard order matters" — Cards which refer to the order of cards in a player's graveyard (see Spinning Darkness),
- "Sacrifice buyouts" — Creature cards which have triggered abilities that tell you to sacrifice them unless you pay a cost or perform an action (see Barrow Ghoul).
The following creature types are introduced in this expansion: Aboroth (later changed to Elemental). Avizoa (later changed to Jellyfish), Barishi (later changed to Elemental), Behemoth (later changed to Elemental), Gatekeeper (later changed to Horror), Peacekeeper (later changed to Human), Thundermare (later changed to Elemental Horse), Undead (later changed to Horror and Wraith).
The following creature types are used in this expansion but also appear in previous sets: Atog, Bear, Bird, Cleric, Cyclops, Djinn, Dragon, Drake, Dwarf, Elemental, Elephant, Elf, Falcon (later changed to Bird), Fish, Ghost (later changed to Spirit), Giant, Goblin, Griffin, Hound, Illusion, Knight, Merfolk, Minotaur, Ogre, Ooze, Orc, Rat, Serpent, Snake, Soldier, Spirit, Treefolk, Unicorn, Wall, Wizard, Wolf, Wurm, Zombie.
Weatherlight has three cycles:
- Sac-Auras: Each of these common aura enchantments can be sacrificed for an extra effect: Kithkin Armor, Phantom Wings, Coils of the Medusa, Fire Whip, and Briar Shield.
- Cumulative Upkeep spells: Each of these rare permanents costs NCC and has a cumulative upkeep cost or effect that can allow it to grow without the use of mana. — Aboroth, Inner Sanctum, Psychic Vortex, Gallowbraid, Heart of Bogardan.
- Rare spells: Each of these rare instants or sorceries have an effect that can be determined as more beneficial if the caster is at a disadvantage. — Tariff, Paradigm Shift, Urborg Justice, Firestorm, Nature's Resurgence.
Weatherlight has two Functional reprints:
- Cloud Djinn is a functional reprint of Cloud Dragon from Portal, save for creature type.
- Fallow Wurm is a functional reprint of Thundering Wurm from Portal.
- Gemstone Mine
- Lotus Vale was very popular, although it was very vulnerable to land destruction.
- Null Rod has become a powerful artifact stopping cards in Vintage tournaments.
- Redwood Treefolk is one of the first cards that improved upon its predecessor. It cost the same as Ironroot Treefolk at but had a power/toughness of 3/6 instead of the latter's 3/5.
- Official Weatherlight Information Product Page — Magic: The Gathering (old)
- Weatherlight product information page — Wizards of the Coast (new)