Palinchron enter the battlefield, their abilities trigger.
Resolve the
Eternal Witness trigger, returning
Ghostly Flicker to your hand from your graveyard.
Resolve the
Palinchron trigger, untapping up to seven lands.
Repeat.
If you control seven lands that can tap to produce at least ({3} magic symbol) ({U} magic symbol) , this combo nets infinite mana, and you may blink any other permanent besides