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.