The best way to protect the Shrines themselves is with cards like Greater Auramancy and Karmic Justice - enchantments that discourage removing Shrines and sometimes outright stop it from happening
Duraludon VMAX, true to the game, is a Dragon-type that levels up from its original non-Gigantamax form and, due to its awkward mixed energy requirements, often relies on the Raihan trainer card
In the other side, select the cards that you want to receive (I highly recommend searching for the cards you want in the top left box instead of searching through your full collection)
Generally, you will receive the same cards from the same opponent
Going Infinite While powerful entry and activated abilities are fantastic with Gogo, abilities that can untap your Commander can lead to easy infinite loops
If they've already attacked, losing haste won't remove them from combat and they'll remain attackers