Very versatile and easy to use, added to the fact that it is a quick-play spell.
Costs 1000 LP to use.
Tips, Related Cards, Rulings
This card can remove cards even if they are protected by Card Guard or Magic Reflector, because it will not count as a destruction effect but as a remove from play effect.
(This OTK is only possible because of a bug that doesn't half Anki's attack when he attacks directly with his effect and Titan Showdown is active.) Use Cosmic Cyclone to banish a spell/trap card and reduce your LP to make Titan Showdown active, then used masked change to special summon Masked HERO - Anki. Anki is able to attack your opponent directly and because of Titan Showdown he will deal 5600 damage. If your opponent does not control any spell/trap card for you to use Cosmic Cyclone on, you can turn on self-chain. First activate Masked Change on your HERO and then use Cosmic Cyclone on Masked Change, you will still be able to summon Anki with your LP reduced for Titan Showdown.
Some decks require spell/trap cards in their setup to run properly. Cosmic Cyclone is an effective counter against these types of decks because banishing their key spell/trap card usually means they have no interaction with it anymore and would need a to search out a new copy. Here are some spell/trap cards that can be considered key cards in their respective decks.
No Mortal Can Resist Can be used when your Life points are at least 1000 less than the opponent's. All monsters in the opponent's Graveyard changes to Skull Servants (Zombie / DARK / Level 1 / ATK: 300 / DEF: 200). This skill can only be used once per turn..
Where the Heroes Dwell Can be used after you Life Points are 3000 or below. Play the Field Spell "Skyscraper". If there already is Field Spell on your side of the Field, Return it to your hand. This skill can only be used once per duel.
Destiny Calling (Skill) Can be used after your Life Points are at 3000 or below. Play the Field Spell "Dark City." If there already is Field Spell on your side of the Field, return it to your hand. This skill can only be used once per Duel.