Instant, 1B (2) Switch target creature's power and toughness until end of turn.1 "You know what I was,/ You see what I am: change me, change me!" -Randall
Illus. Susan Van Camp
As per Rule 418.5a, power and toughness switching is applied after any effects that modify power/toughness. This means that even if new spells and abilities are played to modify power/toughness, they are applied before the switch. [D'Angelo 2005/12/01]
This can effectively kill a creature with a power of zero, but there is still a chance to increase the power of the creature using instants before this takes effect. [bethmo 1994/06/14]
Any additional words on cards which modify the power/toughness are also reversed. For example, Blood Lust acts as if it read "Target creature gets -4/+4 until end of turn. If this reduces that creature's power to less than 1, the creature's power is 1." [WotC Rules Team 1997/07/03]
Extended tournaments (see Rule 803) have banned this card since 1999/10/01.
Chronicles
(Common)