During your Standby Phase, if this card is in your Graveyard because it was destroyed by battle and sent there since your last Standby Phase: Target 1 "Destiny HERO" monster in your Graveyard, except a "Destiny HERO - Fear Monger"; Special Summon that target.
There is a semi-nomi Destiny HERO, actually. Dangerous. (Regular Fusions, Synchros and Ritual Monsters are also "semi-nomi".) Fear Monster can revive a Fusion Summoned Dangerous just fine. (Just not one that was Summoned improperly or had its Flip Summon negated.)
This card can't summon destiny hero with level 5 or higher