Activate Cold Storage's first ability twice by paying {6}, exiling Razor Hippogriff and Dockside Extortionist from the battlefield.
Activate Cold Storage by sacrificing it, returning Dockside Extortionist and Razor Hippogriff from exile to the battlefield.
When Dockside Extortionist and Razor Hippogriff enters the battlefield, they trigger.
Resolve the Dockside Extortionist trigger, creating at least ten Treasure artifact tokens.
Resolve the Razor Hippogriff trigger, returning Cold Storage from your graveyard to your hand and causing you to gain 4 life.
Activate ten Treasures by tapping and sacrificing them, adding {10}.
Cast Cold Storage by paying {4}.
Repeat.
If opponents control eleven or more artifacts and/or enchantments, this combo nets infinite Treasure tokens and colored mana.

Infinite blinking

Infinite colored mana

Infinite ETB

Infinite lifegain

Infinite lifegain triggers

Infinite LTB

Infinite storm count

Infinite Treasure tokens

Cold Storage

Dockside Extortionist

Razor Hippogriff

Combos with "Razor Hippogriff"