amaterasu yugioh deck BANISH EVERYTHING!! AMATERASU-SPIRIT FT MELODIOUS [ Yu-Gi-Oh! Duel Links ] Once per turn Card Gallery:Amaterasu | Yu-Gi-Oh! Wiki

So let's explain the original intent

The monsters don't come out of there cards or anything like that

(This card is NOT treated as a Trap.) C Common The Phantom Knights of Wrong Magnetring X TRAP When an opponent's monster declares an attack: Negate that attack, then Special Summon this card in Attack Position as an Effect Monster (Warrior/DARK/Level 2/ATK 0/DEF 0) with the following effect

While they can mostly only be used while on the battlefield, you should read the ability and look for clues as to when its supposed to be used

Its especially good if you have ways to benefit from other players sacrificing creatures