Great search option that quickly retrieves your key card from your Deck.
Also provides direct banish option for your monsters to allow Special Summoning from the Banished zone.
You need to wait until your 2nd Standby Phase after this card was activated, to retrieve the banished card.
The main difference between this card and Different Dimension Capsule is that, it does not stay at your back row until your 2nd Standby Phase, and the card you banish will be face-up, allowing more flexibility to Special Summon/Retrieve the card from the banished zone.
Escape from the Dark Dimension and Premature Return functions to Special Summon monsters from your Banished zone to the Field, Escape from the Dark Dimension only applies to Dark attribute monsters, while Premature Return will Special Summon that monster in face-down DEF position. Similarly, Released from Stone is able to Special Summon any Rock-type monster from your Banished zone to the Field. Different Dimension Reincarnation directly Special Summons any monster in your Banished Zone to the Field and equip itself to that monster. Different Dimension Master can also use its effect to Special Summon any monster from your Banished zone by discarding 1 Spell Card as a cost.
You can banish any Spellbook Spell card from your Deck to your Banished zone (except Spellbook of Eternity), and retrieve it with Spellbook of Eternity. This is very good especially when you need to retrieve that Spellbook card quickly.
Gold Sarcophagus is a direct upgrade to Different Dimension Capsule. While both cards require you to wait till the second standby phase after activation, Gold Sarcophagus does not clog your backrow, is not negated when it is destroyed, and banishes the searched card face-up allowing you to interact with it. But aside from those disadvantages Different Dimension Capsule can be used as a budget Gold Sarcophagus.
It is way too slow to search Emperor and tou don't really need an extra banishing mecanism because Emperor's effect needs to banish Archfiends as a cost (if you want to revive it with Escape from the Dark Dimension or anything else).
Therefore, it is unnecesary for Archfiend decks.
different dimension capsule is the free 2 play version