The creature tokens in question were Eldrazi Spawn
If you like non-foils, pick this one
You can take advantage of an opponents best creature and copy it for your own benefit or copy one of your own creatures to double up on beneficial triggers
And, you'll notice they all have useful ETB effects and make for fine flicker targets if we're low on more powerful options
Of course, it doesnt prevent any damage to itself, which is a bummer, but the ability to slap this card down and then play a Star of Extinction with a full board putting 20 +1/+1 counters on all of your creatures (except for Vigor) is a play that will likely cause your foe to concede on the spot
Disturb and flashback are both featured prominently in the set, which makes for cards that are totally reasonable to cast face-up or that you can freeroll some value off of if you can get them to your graveyard by other means