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Honestly, this and number two are probably interchangeable

If you were lucky, you had maybe one Mirror Force in your deck, which left room for a stew of lesser battle traps like Negate Attack, Draining Shield, and even Fairy Box

Drown in Dreams feels like a better option than Pull from Tomorrow, Beacon of Unrest a little better than Extract from Darkness due to repeatability, Toxic Deluge being better than In Garruk's Wake, and so on

These sliver commanders range in strategy from a typal crux to token generating to storm deck support

When a card is too powerful in tournaments it will sometimes get banned, so its important to check the Yugioh ban list to stay on top of your cards relevance to meta tournaments