As for the main set, one of the main new mechanics was saga creatures
These include Mirage, Rath, Urza's and Masques blocks new sweepers: White - Purify, Cataclysm, Catastrophe, Serenity, Winds of Rath, (Mageta the Lion, Planar Collapse, Retribution of the Meek) Red - Mogg Infestation, Pulverize, Ruination, (Boil, Imposing Disaster) Black - Forced March, Plague Wind, (Extinction, Perish) Blue -
This deck only requires a way to tap into Crystron Halqifibrax in order to summon a possible board of Borreload Savage Dragon, Thunder Dragon Colossus, Wandering Gryphon Rider and Destroy Phoenix Enforcer
In the end, it made sense they got their own creature type, just like the Tyranids
Browning says the three EX Deoxys singles - Deoxys (Normal) (#97), Deoxys (Attack) (#98) and Deoxys (Defense) (#99) - are also popular
Plus, red decks have plenty of ways to give it haste, so you can escape it, drain 3, attack for 6, and drain 3 more to deal 12 damage total