For example, if the Duelist who originally started first declares an attack towards the Duelist who started fourth, then the Duelist who started third can activate a Trap Card like "Sakuretsu Armor" in response to the attack as if it were declared on themself
Next to the card number are symbols typically, stars, circles, or diamonds that also indicate how common your card is
Due to the powerful effects of Supporter cards, players can only play one Supporter card per turn and the first player cant play a Supporter on their opening turn
Then there are sacrifice outlets for things like damage (Goblin Bombardment) or milling (Altar of Dementia)
Fold the bottom section of the holder up, and use a 2 1/2 inch strip of duct tape on each side to close the pocket
Put the chosen cards into your hand and the rest on the bottom of your library in a random order