Hi. Yesterday we had a small conflict among players, about "Bedazzlement" spell card effect and we couldn't find any references on a forum.

"Bedazzlement" spell card effect:

"1 damage, and you may add a random card from your hand to your spell"

The question is about random card. Does this mean that the player must choose a card from his deck without checking his hand or he actually can check his hand and choose any card, and a random card is more refers to the type of cards?