You can bank your mana, you can use token-doublers
MTG's Control, Combo and Burn Decks Are Best Against Exile The very core of MTG is a tug-of-war between players, with both trying to establish a strong board state of their own while trying to dismantle their opponent's
Sure, the ceiling on a creature like Legion Warboss is pretty high if it isnt answered, but theres not really a lot of work you have to do to make that happen, really
And Standard is full of ways to make tokens, like job select in Final Fantasy, offspring in Bloomburrow, and mobilizing in Tarkir: Dragonstorm
In the latter, it was used on paper printed version of digital-only Alchemy cards on MTG Arena
While your LGS might not grade them, they can help you figure out if anything in your collection is worth trading (assuming you take the time to find the most likely cards