Dwarven forge

at the begining of your endstep you may pay {1} if you do put a work counter on Dawrven Forge
at the begining of your upkeep if Dwarven Forge has 2 or more work counters on it sacrsfice it, if you do create two 1/ thopter artifact creature tokens with flying, two 1/1 servo artifact creature tokens and two 1/1 myr artifact creature tokens.