u/CarelessNameChoice

1. Your opponents must control a total of exactly 13 tapped lands. If they control any more than that, use some land removal to keep this combo from actually granting you any infinite mana, and inform them that this is for their own good.
2. Cast Energy Refractor for {2}
3. Cast Mana Geyser for {3}{R}{R}, adding {R}{R}{R}{R}{R}{R}{R}{R}{R}{R}{R}{R}{R} (13 red mana) to your mana pool, for a total of 14 floating red mana.
4. Filter {R}{R}{R}{R} into the Energy Refractor to create {U}{U}, and use that and two more of the floating red to cast Pull From The Deep targeting Mana Geyser. (8 red floating)
5. Filter {R}{R} into Energy Refractor for {W} to cast Pull From Eternity, targeting the Pull From The Deep. (6 red floating)
6. Cast Flashback targeting Pull From The Deep. (5 red floating)
7. Recast Mana Geyser, adding {R}{R}{R}{R}{R}{R}{R}{R}{R}{R}{R}{R}{R} (another 13 red mana) to your mana pool.
8. Filter {R}{R}{R}{R} into Energy Refractor for {U}{U}and flashback Pull From The Deep, targeting Pull From Eternity and Mana Geyser.
9. Repeat steps 5-9 to your heart’s content. (Edit: skip step 6. I just don’t feel like writing all that out again. Pull From The Deep still has flashback until end of turn).
10. Pass your turn. Make sure to point out to your opponents that you haven’t cast anything with Storm

Edit: Flashback won’t work here. The combo requires {9}{R}{R}{R}{R} to start up and actually works, by swapping Flashback with [[Return The Past]]