Tap one of your units with remaining health X That unit attacks itself, with X power, Fury 2, and no other effects. If you roll X or more hits for this attack, do X damage to that unit. If you roll less than X hits for this attack, gain 2 Force, prevent all damage that unit would do for this attack, and it gets +20 speed, +2 power, and +2 health until it is discarded. Play only when no unit is attacking.