Provided you can keep her alive long enough to sacrifice your tokens, of course
However, the real reason to play Exoskeleton at all is its ability to give the equipped card infect , which makes it do damage in the form of poison counters
It's a bit hard to make out over the big, colourfulj flashy dragon, but that dragon is an illusion scaring the human knights
You can also rely on other more conventional green stompy enablers like Garruks Uprising to refill your hand to do it again next turn
That may sound extreme, but since the rules ensure priority has to pass all the way around the table (in turn order, starting with the player whose turn it is) before each spell resolves and between each step and phase of a turn, everyone is still able to play effects at the moments they need to
It can take as little as three combats for you to start draining all your opponents each turn as long as you have strong lifegain