yugioh card cyberdark dragon Singles SDCS-EN044 1st Ed End Ultra Rare Cyber Strike Single Card Toys equip 1 Dragon or Machine monster from either GY to it as an Equip Spell that gives it 1000 ATK Yu-Gi-Oh! - Cyberdark Edge (DT04-EN053)

There are exceptions - certain cards can alter your hand size during play

Although its unclear what exact function Roshan, Hidden Magister will have overall, it does seem to be particularly good in a disguise/morph build in an assassins deck so you can get assassin attacking triggers for those face-down creatures

On the other hand, if a spell or ability deals lethal damage to a creature enchanted with an Aura that has totem armor, the game rules regarding lethal damage cause the Aura to be destroyed, not that spell or ability

I think that's the key difference

In both cases, this trap card is capable of taking an attack that was aimed at you, and reversing it