mtg mono white commander deck / EDH decks — Could I use this card

In Magic's lingo, they replace themselves

The goal of the deck is to flood the board with Merfolk and buff them with lords like Deeproot Elite and Emperor Mihail II, overwhelming the table with a fishy onslaught

The impact of a booster boxs age is pretty self-explanatory

By reading the situation, not drawing attention to yourself, creating confusion in the game state and waiting for favorable conditions, you can use your resources and savvy to outmaneuver your opponents defeating them in spite of (or even because of) the help you gave them up to that point

Are there restrictions on usable set symbols or mana symbols