Who wins this?
Satan Mushrambo can not go back in time to kill baby seiya, more can use the time travel to escape the attacks of saint seiya.
can not stop time.
Satan Mushrambo: allowed to create a hole in the fabric of time and space to absorb attacks seiya, and send it to another timeline or send him back to seiya.
Can use to change the location of the battle that seiya and he will fight.
can use other techniques
Seiya also can use all techniquesTo make a fair fight, the 2 fight at the same speed, both can cause them serious harm, a on, other.