If the copied creature is copying something else, then the tokens enter the battlefield as whatever that creature copied, with the listed exception
Oftentimes, your commander will be part of your win condition
Gone are the days people would run commanders just because they were the colours they wanted access to Card advantage every top commander provides card advantage in some way, whether its literally drawing cards, card selection via scrying or similar, bringing cards back from the graveyard, tutoring, or even producing permanents such as tokens
Together, they make multiple haste copies of the creature Splinter Twin is enchanting and win the game on the spot
Well, I wish it were that simple
This card was made to bolster heroic by giving lots of heroic triggers around the table