SCP 5320 The Endless Fish

Token copies of SCP 5320 aren't legendary.
At the beginning of your upkeep, make a token
copy of this creature.
When SCP 5320 enters the battlefield, make two
token copies of it, except they don't have this
ability.
The Fish That Just Goes On Forever, Our
Merciful and Long Lord, Its Glorious Infinitude,
Hail Its Everlasting Fish Body.