This is essentially the Magic Arena variant of Commander/EDH, the big differences include the ability to put a planeswalker into the command zone, 1v1 matches, a starting life total of 25 and the only legal cards are the cards in Historic, which includes all cards on MTG Arena except for a few banned cards (looking at you, Oko, Thief of Crowns)
If youre aiming for rare cards, consider saving your stamina and resources for the best chances
Its the purest form of discard, meaning the core strategy is to discard, not just work as a supporting role to help you dominate the board
The cultural nuances whether its a stylistic difference in a holographic pattern or a full art card that debuts in Japan first give each version of the cards its own charm
Recently I put together a Zapdos deck that uses Pincurchin, an Electric-type Pokemon, and Hypno, a Psychic-type