Stun makes your enemy unable to move. Heroes in final fate td who has the ability to stun enemies. Valkyrie has 2 skills to stun enemies (base and conquest) and 1 skill to silence enemies.
SSR
Leopold (base skill and conquest skill can stun your enemies)
Angela (base skill)
Yuri (base skill)
Morgana (conquest skill)
Da vinci (conquest skill)
SSSR
Valkyrie (base skill and conquest skill)
Nero (base skill and conquest skill)
Lucia (base skill)
Azazel (conquest skill)
Game
best stun final fate td