Assemble the LightningLegion

Assemble the LightningLegion enters the battlefield with one muster counter on it
At the beginning of your upkeep create a number of 2/2 red white and blue knight creature tokens with haste equal to the number of muster counters on Assemble the LightningLegion.
{x}{x}{w}{u}{r}: Put x muster counters on this enchantment