There's some disconnect between how these cards have been pitched and their execution, which seems much more focused on providing a skeleton of moments that might help players to orient themselves in the narrative and entice players to check out the actual story
Its nice that they work in multiples, but by and large, I prefer Oblivion Sower for its bigger body and (usually) guaranteed mana boost
These powerful abilities can only be activated once per battle, and Arceus lets you search your deck for 2 cards to add to your hand
How many lands should a Commander deck have
There are online marketplaces or stores where you can order Japanese card games, but be careful with your choice, you don't want to spend your precious money to receive fake cards or even never receive them at all because the sender doesn't know how to handle international customs controls properly
The main thing is you want to slip at least one creature by blockers to get the Fierce Punch card draw