There is a Legacy version
here.
Impaling Spike
[two-actions] Spell 5Concentrate Manipulate Metal Source Player Core pg. 338 2.0Traditions arcane,
primalCatalysts Silvered Marp FurDeity LaudinmioRange 30 feet;
Targets 1 creature
Defense Reflex;
Duration 1 minute
You conjure a spike that thrusts up from the earth beneath a target creature, potentially impaling it. The spike is made of
cold iron and deals 8d6 piercing damage. The target must attempt a Reflex save.
Critical Success The target dodges the spike and is unaffected.
Success The target is struck by the spike and takes half damage.
Failure The target is impaled through a leg or another non-vital body part. The creature takes full damage and, if it's standing on solid ground, becomes
immobilized. It can attempt to
Escape (the DC is your spell DC). While it remains impaled, it takes damage from any weakness to cold iron it has at the end of each of its turns.
Critical Failure As failure, but the creature is impaled through a vital organ or its center of mass, taking double damage, and it is
off-guard as long as it's impaled.
Heightened (+1) The damage increases by 2d6.