Planeshift is the twenty-second Magic expansion and was released in February 2001 as the second set and first small expansion in the Invasion Block.
The three rare cards Ertai, the Corrupted, Tahngarth, Talruum Hero, and Skyship Weatherlight have alternate foil versions, so that each appears with its normal art as a foil and also appears with special art on the foil card. The special art versions have a star next to the collector's number.
Planeshift introduces the Gating mechanic. It is generally attached to an undercosted creature, when that creature comes into play, gating requires the player to return a creature they control to their hand. Planeshift expands upon the Kicker keyword introduced in Invasion by having other costs besides mana.