pf2e.fyi
From Pathfinder Book of the Dead, which isn't enabled.

Seize

FEAT 14
ARCHETYPEFLOURISH
Activity 1 action
Archetype Zombie
Prerequisites Zombie Dedication
Requirements Your last action was a successful fist Strike against a creature no more than one size larger than you.

You seize your foe and pull it close. The foe you hit is Grabbed as if you succeeded at an Athletics check to Grapple the foe.

Pathfinder Book of the DeadOGL