The fact that it had shroud meant that your foe had a rough time dealing with it
For instance, most of the Mekk-Knight monsters have this as their first effect: If 2 or more cards are in the same column, you can Special Summon this card (from your hand) in that column This means that if your opponent has a spell and a monster in the same column on the field, you could special summon a Mekk-Knight to that same column in the monsters zone on your side of the field
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If you don't have fourteen or more cards in your graveyard at that time, the ability won't resolve and none of its effects will happen
Sacrifice five Treasures: Search your library for an artifact or Dragon card, put that card onto the battlefield, then shuffle