"The true meaning of a singleton format is to copy all the good cards"

But what about this? No:
-reanimation
-recursion
-blink
-bounce
-copy
-tutors, except maybe basic land tutors
-cards that create more than one token/no card can create same token twice
-triggered abilities that happen turn after turn?
-repeatable activated abilities
-cards with different names but same effect (corrupted conviction and village rites)
-repeat mana symbols on one card

If I do repeat myself, I've lost. (But won't concede)
Am I allowed to recast my commander?

Commanders
Jegantha (not as companion because that would basically be a repeat commander)