Jackknife "Thunder Storm"

■ [Call Cost] Pay 1 gauge. & Put this card on top of a monster on your field with "Jackknife" in its card name.

■ [Act] "Thunder Raid" If this card is on the left or right, you may pay 2 life. If you do, destroy a monster on your opponent's field.

■ Soulguard (If this card would leave the field, you may discard one soul to prevent it)