Meeting of the Five Be sure to have a lot of cards that have exactly three colors in your 5-color deck that includes Meeting of the Five
And it aint just black removal spells and edicts, but also creatures like Fandaniel, Telophoroi Ascian and Kaervek, the Punisher
Get back the tutor card from the graveyard
The successful Burning Vengeance decks run as many cheap flashback cards as they can get their hands on, allowing them to burn up opposing threats as quickly as their opponents can cast them

Aang's Iceberg Aang, Swift Savior Aboleth Spawn Accelerated Evolution Activated Sleeper Adaptive Shimmerer Ademi of the Silkchutes Aether Meltdown Affa Guard Hound Agent Venom Airtight Alibi Akoum Alchemist's Refuge Alexi's Cloak Alms Collector Aluren Ambrosia Whiteheart Ambush Gigapede Ambush Paratrooper Ambush Viper Ambush Wolf Amphibian Downpour Anafenza, Unyielding Lineage Ancient Stone Idol Angel of Grace Angel of Salvation Angel of the Dire Hour Animate Spell (playtest) Annie Flash, the Veteran Appa, Steadfast Guardian Appendage Amalgam Aquitect's Defenses Archangel Avacyn Archivist of Oghma Arlinn, the Pack's Hope Armaggon, Future Shark Armor of Thorns Ashcoat Bear Ashiok's Erasure Ashiok's Forerunner Asinine Antics Aspect of Manticore Aven Interrupter Aven Mindcensor Aven Reedstalker Avengers Assemble
Promos from early events can be strong too