In Final Fantasy 4 , Mist is a magical energy associated with summons, which are mystical monsters called from another plane
If this card is Normal or Special Summoned: You can place 1 "Vision HERO" monster from your Deck, except "Vision HERO Faris", in your Spell & Trap Zone as a face-up Continuous Trap, also you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except "HERO" monsters
Horrifyingly creepy
If it were more playable in singleton limited then I would have it second or something
Once you understand the types of cards and their value, you are in a better position to know what to collect
Furthermore, some cards are designed to be summoned during the opponent's turn, and Ghoti of the Deep Beyond is a primary example of this phenomenon