Return the way you came, stepping on and off the warp next to the Rocket Grunt twice to go back to the elevator
That said, the symmetry is a bit of a drawback, because opponents get the same haste boost, so its at its best when you plan to explode first and close the door fast
While Feather is on the battlefield, each instant or sorcery spell you cast on one of your creatures gets stored in exile and returned to your hand at the end of your turn
With all this equipment, it is easy to justify including Angel Ring (YGOrg Translation) in the deck, giving you a bit more control over the duel with its effect to negate the first Spell Card or effect your opponent attempts to resolve
If Summoning a "D/D" Fusion Monster this way, you can also banish monsters from your Graveyard as Fusion Material
That's the ruler of cruel for you