Natural Order [Portal]Set: Portal Type: Sorcery Rarity: Rare Cost: {2}{G}{G} As an additional cost to cast this spell, sacrifice a green creature. Search your library for a green creature card and put it onto the battlefield. Then shuffle your library.

Set: Scars of Mirrodin Prerelease Promos Type: Artifact Creature — Wurm Rarity: Mythic Cost: {6} Deathtouch

The more you pay for the lesson

As long as you have 30 or more life

Set: Portal Three Kingdoms Type: Sorcery Rarity: Uncommon Cost: {2}{R} Target opponent chooses a creature they control

and put those cards onto the battlefield

or I shall master it for you

Set: Pro Tour Promos Type: Legendary Planeswalker — Liliana Rarity: Mythic Cost: {1}{B}{B} +1: Each player discards a card

Activate this ability only any time you could cast a sorcery

Set: Classic Sixth Edition Type: Sorcery Rarity: Rare Cost: {3}{W} Destroy all lands

When Oubliette leaves the battlefield

When Verdurous Gearhulk enters the battlefield

sacrifice Junún Efreet unless you pay {B}{B}