yugioh card ultra rare Yu-Gi-Oh! DUPO-EN101 Dark Magician (Ultra Rare) Single Cards Yu-gi-oh Rare Value 1st Edition

Yes, a single player should track separate damage from individual commanders

This allows you to not only gain access to your strongest Demons but the likes of instant-speed removal and responses to help protect your key assets and disrupt your opponents' win conditions

In that case, Ruhans controller can have Ruhan attack the chosen player (and pay) or any other player or planeswalker, or not attack at all.

As for the points you earn from collecting a card, do not spend these freely as they take a while to build up and are used to purchase a single card

As mentioned above, the pull rates of Tekno cards are 1 in 15 packs