Ultimates frequently have very splashy abilities that often equate to you win the game. That's the bulk of what you need to know about the rules of planeswalkers and how they work
Loxi: I wish this had evasion instead of a higher toughness stat, but being able to slap its abilities on anything makes this pretty solid in a self mill deck, as you can mill it, still get some value off it, and further enable you to mill more/draw cards
It's hard not to pick powerful commanders from across the franchise when considering cards to add to your decks, but even cheaper card options with shorter abilities can have great potential
Suggested 1-Day Pokmon Card Route in Tokyo If you only have one day, this is the most efficient circuit: Morning (10am): Start at Hareruya 2 Akihabara biggest selection, beat the crowds
Finally, the deck needs to avoid running out of steam
In Magic: the Gathering, there's a card called Second Chance